diff --git a/lms/djangoapps/course_wiki/editors.py b/lms/djangoapps/course_wiki/editors.py
index f1841d33db..8dcd4ee822 100644
--- a/lms/djangoapps/course_wiki/editors.py
+++ b/lms/djangoapps/course_wiki/editors.py
@@ -29,7 +29,7 @@ class CodeMirrorWidget(forms.Widget):
             default_attrs.update(attrs)
         super(CodeMirrorWidget, self).__init__(default_attrs)
 
-    def render(self, name, value, attrs=None):
+    def render(self, name, value, attrs=None, renderer=None):
         if value is None:
             value = ''
 
diff --git a/openedx/core/djangoapps/api_admin/widgets.py b/openedx/core/djangoapps/api_admin/widgets.py
index f5d2f18675..7f138c7aac 100644
--- a/openedx/core/djangoapps/api_admin/widgets.py
+++ b/openedx/core/djangoapps/api_admin/widgets.py
@@ -16,7 +16,7 @@ from openedx.core.djangolib.markup import HTML, Text
 class TermsOfServiceCheckboxInput(CheckboxInput):
     """ Renders a checkbox with a label linking to the terms of service. """
 
-    def render(self, name, value, attrs=None):
+    def render(self, name, value, attrs=None, renderer=None):
         extra_attrs = attrs.copy()
         extra_attrs.update({'type': 'checkbox', 'name': name})
         final_attrs = self.build_attrs(self.attrs, extra_attrs=extra_attrs)