diff --git a/packages/client/src/components/MkSubNoteContent.vue b/packages/client/src/components/MkSubNoteContent.vue
index 87a30c2474..521dd08cea 100644
--- a/packages/client/src/components/MkSubNoteContent.vue
+++ b/packages/client/src/components/MkSubNoteContent.vue
@@ -188,7 +188,7 @@ const mfms = props.note.text
 	? extractMfmWithAnimation(mfm.parse(props.note.text))
 	: null;
 
-const hasMfm = $ref(mfms.length > 0);
+const hasMfm = $ref(mfms && mfms.length > 0);
 
 let disableMfm = $ref(hasMfm && defaultStore.state.animatedMfm);