diff --git a/crates/js-sys/src/lib.rs b/crates/js-sys/src/lib.rs
index bed5d2e7..67cff622 100644
--- a/crates/js-sys/src/lib.rs
+++ b/crates/js-sys/src/lib.rs
@@ -683,8 +683,7 @@ extern "C" {
 // Float32Array
 #[wasm_bindgen]
 extern "C" {
-    // TODO Uncomment this once TypedArray is added:
-    // #[wasm_bindgen(extends = Object, extends = TypedArray)]
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Float32Array;
 
@@ -737,8 +736,7 @@ extern "C" {
 // Float64Array
 #[wasm_bindgen]
 extern "C" {
-    // TODO Uncomment this once TypedArray is added:
-    // #[wasm_bindgen(extends = Object, extends = TypedArray)]
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Float64Array;
 
@@ -914,6 +912,7 @@ extern {
 // Int8Array
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Int8Array;
 
@@ -966,6 +965,7 @@ extern "C" {
 // Int16Array
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Int16Array;
 
@@ -1018,6 +1018,7 @@ extern "C" {
 // Int32Array
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Int32Array;
 
@@ -2539,6 +2540,7 @@ extern {
 // Uint8Array
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Uint8Array;
 
@@ -2591,6 +2593,7 @@ extern "C" {
 // Uint8ClampedArray
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Uint8ClampedArray;
 
@@ -2645,6 +2648,7 @@ extern "C" {
 // Uint16Array
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Uint16Array;
 
@@ -2697,6 +2701,7 @@ extern "C" {
 // Uint32Array
 #[wasm_bindgen]
 extern "C" {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Uint32Array;
 
diff --git a/crates/js-sys/tests/wasm/TypedArray.rs b/crates/js-sys/tests/wasm/TypedArray.rs
index e3b6292a..5c1e88fc 100644
--- a/crates/js-sys/tests/wasm/TypedArray.rs
+++ b/crates/js-sys/tests/wasm/TypedArray.rs
@@ -1,5 +1,6 @@
 use wasm_bindgen::prelude::*;
 use wasm_bindgen_test::*;
+use wasm_bindgen::JsCast;
 use js_sys::*;
 
 macro_rules! each {
@@ -16,6 +17,19 @@ macro_rules! each {
     )
 }
 
+macro_rules! test_inheritence {
+    ($arr:ident) => ({
+        let arr = $arr::new(&JsValue::undefined());
+        assert!(arr.is_instance_of::<$arr>());
+        let _: &Object = arr.as_ref();
+        assert!(arr.is_instance_of::<Object>());        
+    })
+}
+#[wasm_bindgen_test]
+fn inheritence() {
+    each!(test_inheritence);
+}
+
 macro_rules! test_undefined {
     ($arr:ident) => ({
         let arr = $arr::new(&JsValue::undefined());