diff --git a/src/hooks/useMenuEvents.ts b/src/hooks/useMenuEvents.ts
index 6ff2814e..6cb19faa 100644
--- a/src/hooks/useMenuEvents.ts
+++ b/src/hooks/useMenuEvents.ts
@@ -10,7 +10,7 @@ import {
 declare global {
   interface Window {
     __laputaTest?: {
-      dispatchAppCommand: (id: string) => void
+      dispatchAppCommand?: (id: string) => void
       dispatchBrowserMenuCommand?: (id: string) => void
       triggerMenuCommand?: (id: string) => Promise<unknown>
     }
diff --git a/src/main.tsx b/src/main.tsx
index 63c95d4e..eb66760b 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -12,7 +12,7 @@ import {
 declare global {
   interface Window {
     __laputaTest?: {
-      dispatchAppCommand: (id: string) => void
+      dispatchAppCommand?: (id: string) => void
       dispatchBrowserMenuCommand?: (id: string) => void
       triggerMenuCommand?: (id: string) => Promise<unknown>
     }