diff --git a/api/blueprints/mail/retrieve/get.py b/api/blueprints/mail/retrieve/get.py
index 93966f5..ab8bc5b 100644
--- a/api/blueprints/mail/retrieve/get.py
+++ b/api/blueprints/mail/retrieve/get.py
@@ -189,7 +189,7 @@ async def get_one_mail(
 
     # We check if the token that was used to fetch the mail is owned by this user:
     if not await token_check.is_authorized(
-        mongo_conn = current_app.data_mongo,
+        mongo_data_conn = current_app.data_mongo,
         user_info = CoreUserInfoModel(**kwargs["session_info"]),
         token_ids = [message.tokenId]
     ): return ResponseModel(