diff --git a/packages/web-app-preview/src/App.vue b/packages/web-app-preview/src/App.vue
index 15d39b51ee6..3a906b18173 100644
--- a/packages/web-app-preview/src/App.vue
+++ b/packages/web-app-preview/src/App.vue
@@ -206,7 +206,7 @@ export const mimeTypes = () => {
     'image/png',
     'video/mp4',
     'video/webm',
-    ...(window?.Vue?.$store.getters.extensionConfigByAppId(appId).mimeTypes || [])
+    ...(window?.Vue?.$store?.getters.extensionConfigByAppId(appId).mimeTypes || [])
   ]
 }