diff --git a/packages/client/src/components/MkNote.vue b/packages/client/src/components/MkNote.vue
index 0b3012da24..5d6fe6bdce 100644
--- a/packages/client/src/components/MkNote.vue
+++ b/packages/client/src/components/MkNote.vue
@@ -82,7 +82,7 @@
 					:enableEmojiReactions
 					:hideEmojiViewer
 					:detailedView
-					:note-translation="noteTranslation!"
+					:note-translation="noteTranslation"
 					@deleted="isDeleted = true"
 					@event:focus="focus"
 					@event:blur="blur"
diff --git a/packages/client/src/components/MkNoteSub.vue b/packages/client/src/components/MkNoteSub.vue
index b2886fbb6c..979168e22f 100644
--- a/packages/client/src/components/MkNoteSub.vue
+++ b/packages/client/src/components/MkNoteSub.vue
@@ -47,7 +47,7 @@
 					:enableEmojiReactions
 					:hideEmojiViewer
 					:detailedView
-					:note-translation="noteTranslation!"
+					:note-translation="noteTranslation"
 					@deleted="isDeleted = true"
 					@event:focus="focus"
 					@event:blur="blur"
diff --git a/packages/client/src/components/note/MkNoteFooter.vue b/packages/client/src/components/note/MkNoteFooter.vue
index aff161ff47..10f5caaec9 100644
--- a/packages/client/src/components/note/MkNoteFooter.vue
+++ b/packages/client/src/components/note/MkNoteFooter.vue
@@ -74,11 +74,11 @@
 			v-if="
 				isSignedIn(me) &&
 				isForeignLanguage &&
-				noteTranslation.canTranslate
+				noteTranslation?.canTranslate
 			"
 			v-tooltip.noDelay.bottom="i18n.ts.translate"
 			class="button _button"
-			@click.stop="noteTranslation.translate"
+			@click.stop="noteTranslation?.translate"
 		>
 			<i :class="icon('ph-translate')"></i>
 		</button>
@@ -118,7 +118,7 @@ const props = defineProps<{
 	enableEmojiReactions?: boolean;
 	hideEmojiViewer?: boolean;
 	detailedView?: boolean;
-	noteTranslation: InstanceType<typeof MkNoteTranslation>;
+	noteTranslation: InstanceType<typeof MkNoteTranslation> | null;
 }>();
 
 const emit = defineEmits<{
@@ -151,7 +151,7 @@ const isForeignLanguage = computed(
 		props.note.text != null &&
 		(() => {
 			const postLang = detectLanguage(props.note.text);
-			return postLang !== "" && postLang !== props.noteTranslation.targetLang;
+			return postLang !== "" && postLang !== props.noteTranslation?.targetLang;
 		})(),
 );
 
diff --git a/packages/client/src/scripts/get-note-menu.ts b/packages/client/src/scripts/get-note-menu.ts
index e323a992f6..17939122ed 100644
--- a/packages/client/src/scripts/get-note-menu.ts
+++ b/packages/client/src/scripts/get-note-menu.ts
@@ -22,7 +22,7 @@ export function getNoteMenu(props: {
 	note: entities.Note;
 	menuButton: Ref<HTMLElement | undefined>;
 	isDeleted: Ref<boolean>;
-	translationEl: InstanceType<typeof MkNoteTranslation>;
+	translationEl: InstanceType<typeof MkNoteTranslation> | null;
 	currentClipPage?: Ref<entities.Clip> | null;
 }) {
 	const isRenote =