diff --git a/app/plugins/builtins/tags/routes.py b/app/plugins/builtins/tags/routes.py
index 10fc7a4..eabc71b 100644
--- a/app/plugins/builtins/tags/routes.py
+++ b/app/plugins/builtins/tags/routes.py
@@ -279,7 +279,7 @@ async def delete_tag(
 ):
     """Delete a tag and cascade-delete all its assignments."""
     tenant_id = uuid.UUID(current_user["tenant_id"])
-    user_id = uuid.UUID(current_user["id"])
+    user_id = uuid.UUID(current_user["user_id"])
     tid = _parse_uuid(tag_id, "tag_id")
 
     result = await db.execute(select(Tag).where(Tag.id == tid, Tag.tenant_id == tenant_id))