diff --git a/sdk/lib/_internal/wasm/lib/async_patch.dart b/sdk/lib/_internal/wasm/lib/async_patch.dart
index baf3b2b7805..59924186893 100644
--- a/sdk/lib/_internal/wasm/lib/async_patch.dart
+++ b/sdk/lib/_internal/wasm/lib/async_patch.dart
@@ -95,7 +95,9 @@ Object? _awaitHelper(Object? operand, WasmExternRef? stack) {
   // ensure that the zone will be restored in the event of an exception by
   // restoring the original zone before we throw the exception.
   _Zone current = Zone._current;
-  if (operand is! Future) return operand;
+  if (operand is! Future) {
+    operand = Future.value(operand);
+  }
   Object? result = _futurePromise(stack, operand);
   Zone._leave(current);
   if (result is _FutureError) {