diff --git a/packages/client/src/components/global/MkMisskeyFlavoredMarkdown.vue b/packages/client/src/components/global/MkMisskeyFlavoredMarkdown.vue
index 9746e3ce3e..e8662fb922 100644
--- a/packages/client/src/components/global/MkMisskeyFlavoredMarkdown.vue
+++ b/packages/client/src/components/global/MkMisskeyFlavoredMarkdown.vue
@@ -28,7 +28,7 @@ const props = withDefaults(
 		author?: any;
 		customEmojis?: any;
 		isNote?: boolean;
-		advancedMfm: boolean;
+		advancedMfm?: boolean;
 		lang?: string;
 	}>(),
 	{