diff --git a/wagtail/contrib/modeladmin/views.py b/wagtail/contrib/modeladmin/views.py
index b197f8f064..7bbb733d44 100644
--- a/wagtail/contrib/modeladmin/views.py
+++ b/wagtail/contrib/modeladmin/views.py
@@ -125,7 +125,7 @@ class ModelFormView(WMABaseView, FormView):
         return getattr(self, 'instance', None) or self.model()
 
     def get_form_kwargs(self):
-        kwargs = FormView.get_form_kwargs(self)
+        kwargs = super(ModelFormView, self).get_form_kwargs()
         kwargs.update({'instance': self.get_instance()})
         return kwargs