diff --git a/crates/webidl-tests/array.rs b/crates/webidl-tests/array.rs
index 99f41ea8..e3cf993c 100644
--- a/crates/webidl-tests/array.rs
+++ b/crates/webidl-tests/array.rs
@@ -1,4 +1,3 @@
-use js_sys::Object;
 use wasm_bindgen::Clamped;
 use wasm_bindgen_test::*;
 
diff --git a/crates/webidl-tests/array_buffer.rs b/crates/webidl-tests/array_buffer.rs
index 24018bcc..0886ff91 100644
--- a/crates/webidl-tests/array_buffer.rs
+++ b/crates/webidl-tests/array_buffer.rs
@@ -1,4 +1,3 @@
-use js_sys::Object;
 use wasm_bindgen_test::*;
 
 include!(concat!(env!("OUT_DIR"), "/array_buffer.rs"));
diff --git a/crates/webidl-tests/build.rs b/crates/webidl-tests/build.rs
index 3f4e2fb4..273e3920 100644
--- a/crates/webidl-tests/build.rs
+++ b/crates/webidl-tests/build.rs
@@ -19,6 +19,15 @@ fn main() {
         println!("processing {:?}", path);
         let mut generated_rust = wasm_bindgen_webidl::compile(&idl, None).unwrap();
 
+        generated_rust.insert_str(
+            0,
+            "
+                mod generated_code {
+                    #[allow(unused_imports)]
+                    use js_sys::Object;
+            ",
+        );
+
         let out_file = out_dir.join(path.file_name().unwrap()).with_extension("rs");
 
         generated_rust.push_str(&format!(
@@ -44,6 +53,8 @@ fn main() {
             i
         ));
 
+        generated_rust.push_str("}\nuse self::generated_code::*;");
+
         fs::write(&out_file, generated_rust).unwrap();
 
         // Attempt to run rustfmt, but don't worry if it fails or if it isn't
diff --git a/crates/webidl-tests/callbacks.rs b/crates/webidl-tests/callbacks.rs
index bdb4858e..3c67926c 100644
--- a/crates/webidl-tests/callbacks.rs
+++ b/crates/webidl-tests/callbacks.rs
@@ -1,4 +1,4 @@
-use js_sys::{Function, Object};
+use js_sys::Function;
 use wasm_bindgen_test::*;
 
 include!(concat!(env!("OUT_DIR"), "/callbacks.rs"));
diff --git a/crates/webidl-tests/consts.rs b/crates/webidl-tests/consts.rs
index 5ca2f60f..629e9f37 100644
--- a/crates/webidl-tests/consts.rs
+++ b/crates/webidl-tests/consts.rs
@@ -1,4 +1,3 @@
-use js_sys::Object;
 use wasm_bindgen_test::*;
 
 include!(concat!(env!("OUT_DIR"), "/consts.rs"));
diff --git a/crates/webidl-tests/enums.rs b/crates/webidl-tests/enums.rs
index 23f258c2..215ae95c 100644
--- a/crates/webidl-tests/enums.rs
+++ b/crates/webidl-tests/enums.rs
@@ -1,4 +1,3 @@
-use js_sys::Object;
 use wasm_bindgen_test::*;
 
 include!(concat!(env!("OUT_DIR"), "/enums.rs"));
diff --git a/crates/webidl-tests/global.rs b/crates/webidl-tests/global.rs
index 15e1c508..2bb7450d 100644
--- a/crates/webidl-tests/global.rs
+++ b/crates/webidl-tests/global.rs
@@ -1,4 +1,3 @@
-use js_sys::Object;
 use wasm_bindgen::prelude::*;
 use wasm_bindgen_test::*;
 
diff --git a/crates/webidl-tests/no_interface.rs b/crates/webidl-tests/no_interface.rs
index c872fb86..4e367858 100644
--- a/crates/webidl-tests/no_interface.rs
+++ b/crates/webidl-tests/no_interface.rs
@@ -1,4 +1,3 @@
-use js_sys::Object;
 use wasm_bindgen_test::*;
 
 include!(concat!(env!("OUT_DIR"), "/no_interface.rs"));
diff --git a/crates/webidl-tests/throws.rs b/crates/webidl-tests/throws.rs
index 8297c709..5eff71e4 100644
--- a/crates/webidl-tests/throws.rs
+++ b/crates/webidl-tests/throws.rs
@@ -1,4 +1,3 @@
-use js_sys::Object;
 use wasm_bindgen_test::*;
 
 include!(concat!(env!("OUT_DIR"), "/throws.rs"));