diff --git a/welco/monkeypatch.py b/welco/monkeypatch.py
index 63116a0..d31465c 100644
--- a/welco/monkeypatch.py
+++ b/welco/monkeypatch.py
@@ -25,7 +25,7 @@ from django.utils.translation import get_language
 import ckeditor.widgets
 
 
-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}