diff --git a/packages/frontend/src/pages/timeline.vue b/packages/frontend/src/pages/timeline.vue
index 095d1651e1..39281db947 100644
--- a/packages/frontend/src/pages/timeline.vue
+++ b/packages/frontend/src/pages/timeline.vue
@@ -71,7 +71,7 @@ router.useListener('same', () => {
 type TimelinePageSrc = BasicTimelineType | `list:${string}`;
 
 const queue = ref(0);
-const srcWhenNotSignin = ref<'local' | 'global'>(isAvailableBasicTimeline('local') ? 'local' : 'global');
+const srcWhenNotSignin = ref<'local' | 'bubble' | 'global'>(isAvailableBasicTimeline('local') ? 'local' : 'global');
 const src = computed<TimelinePageSrc>({
 	get: () => ($i ? store.r.tl.value.src : srcWhenNotSignin.value),
 	set: (x) => saveSrc(x),
@@ -215,8 +215,8 @@ function saveSrc(newSrc: TimelinePageSrc): void {
 	}
 
 	store.set('tl', out);
-	if (['local', 'global'].includes(newSrc)) {
-		srcWhenNotSignin.value = newSrc as 'local' | 'global';
+	if (['local', 'bubble', 'global'].includes(newSrc)) {
+		srcWhenNotSignin.value = newSrc as 'local' | 'bubble' | 'global';
 	}
 }