diff --git a/src/inc/routes/apiv2.mjs b/src/inc/routes/apiv2.mjs
index 27bfaa4..d1add41 100644
--- a/src/inc/routes/apiv2.mjs
+++ b/src/inc/routes/apiv2.mjs
@@ -163,6 +163,12 @@ export default (router, tpl) => {
         q = q.andWhere("user_id", req.session.id);
       const reply = !!(await q);
 
+      await sql('tags') // delete not used tags
+        .whereNotIn('id', sql('tags_assign').select('tag_id'))
+        .andWhereNot('tag', 'sfw')
+        .andWhereNot('tag', 'nsfw')
+        .del();
+
       return res.reply({ body: JSON.stringify({
         success: reply,
         tagid: tagid,