diff --git a/app/api/views/alias.py b/app/api/views/alias.py
index 863be411..dd840750 100644
--- a/app/api/views/alias.py
+++ b/app/api/views/alias.py
@@ -296,7 +296,7 @@ def update_alias(alias_id):
     if "name" in data:
         # to make sure alias name doesn't contain linebreak
         new_name = data.get("name")
-        if len(new_name) > 128:
+        if new_name and len(new_name) > 128:
             return jsonify(error="Name can't be longer than 128 characters"), 400
 
         if new_name: