diff --git a/crates/web-sys/tests/wasm/indexeddb.rs b/crates/web-sys/tests/wasm/indexeddb.rs
new file mode 100644
index 00000000..b85c3e43
--- /dev/null
+++ b/crates/web-sys/tests/wasm/indexeddb.rs
@@ -0,0 +1,8 @@
+use wasm_bindgen_test::*;
+use web_sys;
+
+#[wasm_bindgen_test]
+fn accessor_works() {
+    let window = web_sys::window().unwrap();
+    assert!(window.indexed_db().unwrap().is_some());
+}
diff --git a/crates/web-sys/tests/wasm/main.rs b/crates/web-sys/tests/wasm/main.rs
index ce221e16..71d88fff 100644
--- a/crates/web-sys/tests/wasm/main.rs
+++ b/crates/web-sys/tests/wasm/main.rs
@@ -55,3 +55,4 @@ pub mod style_element;
 pub mod table_element;
 pub mod title_element;
 pub mod xpath_result;
+pub mod indexeddb;
diff --git a/crates/webidl/src/lib.rs b/crates/webidl/src/lib.rs
index 4f37aadd..fc6bab60 100644
--- a/crates/webidl/src/lib.rs
+++ b/crates/webidl/src/lib.rs
@@ -568,7 +568,7 @@ impl<'src> FirstPassRecord<'src> {
                     &member.type_,
                     member.identifier.0,
                     &member.attributes,
-                    mixin_data.definition_attributes,
+                    data.definition_attributes,
                 );
             }
         }