diff --git a/api/libs/mail/smtp.py b/api/libs/mail/smtp.py
index a58bf88597..7410bac162 100644
--- a/api/libs/mail/smtp.py
+++ b/api/libs/mail/smtp.py
@@ -153,7 +153,7 @@ class SMTPClient:
             logging.exception("Timeout occurred while sending email")
             raise
         except Exception:
-            logging.exception("Unexpected error occurred while sending email to %s", mail['to'])
+            logging.exception("Unexpected error occurred while sending email to %s", mail["to"])
             raise
         finally:
             if connection: