diff --git a/flaschengeist/controller/sessionController.py b/flaschengeist/controller/sessionController.py
index 499913e..0737cd2 100644
--- a/flaschengeist/controller/sessionController.py
+++ b/flaschengeist/controller/sessionController.py
@@ -40,7 +40,7 @@ def validate_token(token, user_agent, permission):
         else:
             logger.debug("access token is out of date or invalid client used")
             delete_session(session)
-    logger.debug("no valid access token with token: {{ {} }} and permissions: {{ {} }}".format(token, permissions))
+    logger.debug("no valid access token with token: {{ {} }} and permission: {{ {} }}".format(token, permission))
     raise Unauthorized