diff --git a/app/api/views/alias.py b/app/api/views/alias.py
index 21d8561b..7263b41b 100644
--- a/app/api/views/alias.py
+++ b/app/api/views/alias.py
@@ -157,7 +157,7 @@ def toggle_alias(alias_id):
     user = g.user
     alias: Alias = Alias.get(alias_id)
 
-    if alias.user_id != user.id:
+    if not alias or alias.user_id != user.id:
         return jsonify(error="Forbidden"), 403
 
     alias.enabled = not alias.enabled