diff --git a/qwc_services_core/jwt.py b/qwc_services_core/jwt.py
index 72bd866..fe5e1c1 100644
--- a/qwc_services_core/jwt.py
+++ b/qwc_services_core/jwt.py
@@ -49,7 +49,7 @@ def restplus_error_handler(error):
     @jwt.expired_token_loader
     def handle_expired_token(jwtheader, jwtdata):
         # Unset cookies and redirect to requested page on expired token
-        app.logger.warn("Expired token: %s" % str(err))
+        app.logger.warn("Expired token")
         resp = redirect(request.url)
         unset_jwt_cookies(resp)
         return resp