diff --git a/frontend/src/views/GalleryView.vue b/frontend/src/views/GalleryView.vue
index c2f9d72..32a4488 100644
--- a/frontend/src/views/GalleryView.vue
+++ b/frontend/src/views/GalleryView.vue
@@ -32,6 +32,8 @@ const router = useRouter()
 const route = useRoute()
 
 onMounted(async () => {
+  const tagId = parseInt(route.query.tag_id, 10)
+  if (!isNaN(tagId)) store.setTagFilter(tagId)
   await store.loadInitial()
   await store.loadTimeline()
   // Open modal if URL has ?image=N
@@ -39,6 +41,11 @@ onMounted(async () => {
   if (!isNaN(initial)) modal.open(initial)
 })
 
+watch(() => route.query.tag_id, (q) => {
+  const tagId = parseInt(q, 10)
+  store.setTagFilter(isNaN(tagId) ? null : tagId)
+})
+
 watch(() => route.query.image, (q) => {
   const id = parseInt(q, 10)
   if (!isNaN(id) && id !== modal.currentImageId) modal.open(id)