diff --git a/src/backend/langflow/api/v1/users.py b/src/backend/langflow/api/v1/users.py
index 7365e7cc1..5094409cb 100644
--- a/src/backend/langflow/api/v1/users.py
+++ b/src/backend/langflow/api/v1/users.py
@@ -43,7 +43,9 @@ def add_user(
         db.refresh(new_user)
     except IntegrityError as e:
         db.rollback()
-        raise HTTPException(status_code=400, detail="This username is unavailable.") from e
+        raise HTTPException(
+            status_code=400, detail="This username is unavailable."
+        ) from e
 
     return new_user