From a7e89a5ba787c15b9c07e4d0f43a510b42be6f8b Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Mon, 27 Aug 2018 17:52:33 -0700
Subject: [PATCH] [2.1.x] Corrected ModelFormMixin.form_invalid() signature in
 docs.

Backport of 76df4f35c2d732f7996aa6b8d816424c52ee0cc1 from master
---
 docs/ref/class-based-views/mixins-editing.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/ref/class-based-views/mixins-editing.txt b/docs/ref/class-based-views/mixins-editing.txt
index bd7611841e..9cde8b9834 100644
--- a/docs/ref/class-based-views/mixins-editing.txt
+++ b/docs/ref/class-based-views/mixins-editing.txt
@@ -173,7 +173,7 @@ The following mixins are used to construct Django's editing views:
         redirects to
         :meth:`~django.views.generic.edit.FormMixin.get_success_url`.
 
-    .. method:: form_invalid()
+    .. method:: form_invalid(form)
 
         Renders a response, providing the invalid form as context.