diff --git a/combo/monkeypatch.py b/combo/monkeypatch.py
index 79315c9a..6e7386fd 100644
--- a/combo/monkeypatch.py
+++ b/combo/monkeypatch.py
@@ -26,7 +26,7 @@ import ckeditor.views
 import ckeditor.widgets
 from ckeditor.image import pillow_backend
 
-def ckeditor_render(self, name, value, attrs=None):
+def ckeditor_render(self, name, value, attrs=None, renderer=None):
     if value is None:
         value = ''
     final_attrs = {'name': name}