2 files changed, 5 insertions, 4 deletions
diff --git a/futures/src/executor/null.rs b/futures/src/executor/null.rs
index 6d5cf982..65e2e2df 100644
--- a/futures/src/executor/null.rs
+++ b/futures/src/executor/null.rs
@@ -11,5 +11,9 @@ impl Executor for Null {
         Ok(Self)
     }
 
+    #[cfg(not(target_arch = "wasm32"))]
     fn spawn(&self, _future: impl Future<Output = ()> + Send + 'static) {}
+
+    #[cfg(target_arch = "wasm32")]
+    fn spawn(&self, _future: impl Future<Output = ()> + 'static) {}
 }
diff --git a/futures/src/executor/wasm_bindgen.rs b/futures/src/executor/wasm_bindgen.rs
index 69b7c7e2..94d694c8 100644
--- a/futures/src/executor/wasm_bindgen.rs
+++ b/futures/src/executor/wasm_bindgen.rs
@@ -9,10 +9,7 @@ impl Executor for WasmBindgen {
         Ok(Self)
     }
 
-    fn spawn(
-        &self,
-        future: impl futures::Future<Output = ()> + Send + 'static,
-    ) {
+    fn spawn(&self, future: impl futures::Future<Output = ()> + 'static) {
         wasm_bindgen_futures::spawn_local(future);
     }
 }