diff --git a/api/models/model.py b/api/models/model.py
index c697329cc9..901e92284a 100644
--- a/api/models/model.py
+++ b/api/models/model.py
@@ -1012,7 +1012,7 @@ class Message(db.Model):  # type: ignore[name-defined]
                 sign_url = file_helpers.get_signed_file_url(upload_file_id)
             else:
                 continue
-            #if as_attachment is in the url, add it to the sign_url
+            # if as_attachment is in the url, add it to the sign_url.
             if "as_attachment" in url:
                 sign_url += "&as_attachment=true"
             re_sign_file_url_answer = re_sign_file_url_answer.replace(url, sign_url)