diff --git a/crates/backend/src/codegen.rs b/crates/backend/src/codegen.rs
index 96275b82..f95a33b6 100644
--- a/crates/backend/src/codegen.rs
+++ b/crates/backend/src/codegen.rs
@@ -266,6 +266,7 @@ impl ToTokens for ast::StructField {
             }
 
             #[no_mangle]
+            #[doc(hidden)]
             pub extern fn #desc() {
                 use wasm_bindgen::describe::*;
                 <#ty as WasmDescribe>::describe();
@@ -445,6 +446,7 @@ impl ToTokens for ast::Export {
             // binary along with anything it references.
             #[no_mangle]
             #[cfg(all(target_arch = "wasm32", not(target_os = "emscripten")))]
+            #[doc(hidden)]
             pub extern fn #descriptor_name() {
                 use wasm_bindgen::describe::*;
                 inform(FUNCTION);
@@ -726,6 +728,7 @@ impl<'a> ToTokens for DescribeImport<'a> {
         (quote! {
             #[no_mangle]
             #[allow(non_snake_case)]
+            #[doc(hidden)]
             pub extern fn #describe_name() {
                 use wasm_bindgen::describe::*;
                 inform(FUNCTION);
diff --git a/crates/webidl/tests/expected/Event.rs b/crates/webidl/tests/expected/Event.rs
index 51807c4d..2bcf0b3f 100644
--- a/crates/webidl/tests/expected/Event.rs
+++ b/crates/webidl/tests/expected/Event.rs
@@ -55,6 +55,7 @@ impl From<Event> for ::wasm_bindgen::JsValue {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_new_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -104,6 +105,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_event_phase_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -147,6 +149,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_stop_propagation_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -186,6 +189,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_stop_immediate_propagation_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -225,6 +229,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_bubbles_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -268,6 +273,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_cancelable_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -311,6 +317,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_prevent_default_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -350,6 +357,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_default_prevented_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -393,6 +401,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_default_prevented_by_chrome_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -436,6 +445,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_default_prevented_by_content_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -479,6 +489,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_composed_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -522,6 +533,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_is_trusted_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -565,6 +577,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_time_stamp_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -608,6 +621,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_init_event_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -661,6 +675,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_cancel_bubble_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -704,6 +719,7 @@ impl Event {
 }
 #[no_mangle]
 #[allow(non_snake_case)]
+#[doc(hidden)]
 pub extern "C" fn __wbindgen_describe___widl_f_set_cancel_bubble_Event() {
     use wasm_bindgen::describe::*;
     inform(FUNCTION);
@@ -753,4 +769,4 @@ pub type DOMHighResTimeStamp = f64;
 pub type EventInit = bool;
 #[allow(non_upper_case_globals)]
 #[wasm_custom_section = "__wasm_bindgen_unstable"]
-const __WASM_BINDGEN_GENERATED_wasm_bindgen_webidl_0_2_11_0 : [ u8 ; 4451usize ] = * b"_\x11\0\0{\"exports\":[],\"enums\":[],\"imports\":[{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"type\"}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_new_Event\",\"catch\":false,\"method\":false,\"js_new\":true,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"new\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_event_phase_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"eventPhase\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"eventPhase\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_stop_propagation_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"stopPropagation\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_stop_immediate_propagation_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"stopImmediatePropagation\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_bubbles_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"bubbles\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"bubbles\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_cancelable_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"cancelable\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"cancelable\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_prevent_default_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"preventDefault\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_default_prevented_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"defaultPrevented\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"defaultPrevented\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_default_prevented_by_chrome_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"defaultPreventedByChrome\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"defaultPreventedByChrome\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_default_prevented_by_content_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"defaultPreventedByContent\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"defaultPreventedByContent\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_composed_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"composed\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"composed\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_is_trusted_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"isTrusted\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"isTrusted\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_time_stamp_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"timeStamp\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"timeStamp\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_init_event_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"initEvent\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_cancel_bubble_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"cancelBubble\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"cancelBubble\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_set_cancel_bubble_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":\"cancelBubble\",\"class\":\"Event\",\"function\":{\"name\":\"set_CancelBubble\"}}}],\"structs\":[],\"version\":\"0.2.11 (0cd767c9d)\",\"schema_version\":\"4\"}" ;
+const __WASM_BINDGEN_GENERATED_wasm_bindgen_webidl_0_2_11_0 : [ u8 ; 4451usize ] = * b"_\x11\0\0{\"exports\":[],\"enums\":[],\"imports\":[{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"type\"}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_new_Event\",\"catch\":false,\"method\":false,\"js_new\":true,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"new\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_event_phase_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"eventPhase\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"eventPhase\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_stop_propagation_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"stopPropagation\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_stop_immediate_propagation_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"stopImmediatePropagation\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_bubbles_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"bubbles\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"bubbles\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_cancelable_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"cancelable\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"cancelable\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_prevent_default_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"preventDefault\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_default_prevented_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"defaultPrevented\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"defaultPrevented\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_default_prevented_by_chrome_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"defaultPreventedByChrome\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"defaultPreventedByChrome\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_default_prevented_by_content_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"defaultPreventedByContent\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"defaultPreventedByContent\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_composed_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"composed\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"composed\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_is_trusted_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"isTrusted\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"isTrusted\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_time_stamp_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"timeStamp\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"timeStamp\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_init_event_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"initEvent\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_cancel_bubble_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":\"cancelBubble\",\"setter\":null,\"class\":\"Event\",\"function\":{\"name\":\"cancelBubble\"}}},{\"module\":null,\"version\":null,\"js_namespace\":null,\"kind\":{\"kind\":\"function\",\"shim\":\"__widl_f_set_cancel_bubble_Event\",\"catch\":false,\"method\":true,\"js_new\":false,\"structural\":false,\"getter\":null,\"setter\":\"cancelBubble\",\"class\":\"Event\",\"function\":{\"name\":\"set_CancelBubble\"}}}],\"structs\":[],\"version\":\"0.2.11 (161fce9d5)\",\"schema_version\":\"4\"}" ;