diff --git a/apps/rbac/permissions.py b/apps/rbac/permissions.py
index 788c10a69..7cc35d370 100644
--- a/apps/rbac/permissions.py
+++ b/apps/rbac/permissions.py
@@ -97,10 +97,10 @@ class RBACPermission(permissions.DjangoModelPermissions):
             else:
                 model_cls = queryset.model
         except AssertionError as e:
-            logger.error('Error get model cls: ', e)
+            logger.error(f'Error get model cls: {e}')
             model_cls = None
         except AttributeError as e:
-            logger.error('Error get model cls: ', e)
+            logger.error(f'Error get model cls: {e}')
             model_cls = None
         except Exception as e:
             logger.error('Error get model class: {} of {}'.format(e, view))