diff --git a/docs/topics/forms/formsets.txt b/docs/topics/forms/formsets.txt
index c0f6df0855..6d2a2ba5f1 100644
--- a/docs/topics/forms/formsets.txt
+++ b/docs/topics/forms/formsets.txt
@@ -756,6 +756,9 @@ argument - the index of the form in the formset. The index is ``None`` for the
     ...         kwargs['custom_kwarg'] = index
     ...         return kwargs
 
+    >>> ArticleFormSet = formset_factory(MyArticleForm, formset=BaseArticleFormSet)
+    >>> formset = ArticleFormSet()
+
 .. _formset-prefix:
 
 Customizing a formset's prefix