diff --git a/server/src/uds/core/auths/auth.py b/server/src/uds/core/auths/auth.py
index 00cae8dd..bf7db292 100644
--- a/server/src/uds/core/auths/auth.py
+++ b/server/src/uds/core/auths/auth.py
@@ -281,7 +281,8 @@ def authenticate(
     # If do not have any valid group
     if gm.hasValidGroups() is False:
         logger.info(
-            'User {} has been authenticated, but he does not belongs to any UDS know group'
+            'User %s has been authenticated, but he does not belongs to any UDS known group',
+            username,
         )
         return None