diff --git a/front/src/Api/Events/IframeEvent.ts b/front/src/Api/Events/IframeEvent.ts
index fc48b040..5f21d751 100644
--- a/front/src/Api/Events/IframeEvent.ts
+++ b/front/src/Api/Events/IframeEvent.ts
@@ -71,7 +71,7 @@ export type IframeEventMap = {
     setProperty: SetPropertyEvent;
     loadSound: LoadSoundEvent;
     playSound: PlaySoundEvent;
-    stopSound: null;
+    stopSound: StopSoundEvent;
     getState: undefined;
     loadTileset: LoadTilesetEvent;
     registerMenu: MenuRegisterEvent;