diff --git a/docs/topics/i18n/internationalization.txt b/docs/topics/i18n/internationalization.txt
index 316e538581..efbed044e8 100644
--- a/docs/topics/i18n/internationalization.txt
+++ b/docs/topics/i18n/internationalization.txt
@@ -568,6 +568,7 @@ Here's example HTML template code:
 .. code-block:: html+django
 
     <form action="/i18n/setlang/" method="post">
+    {% csrf_token %}
     <input name="next" type="hidden" value="/next/page/" />
     <select name="language">
     {% for lang in LANGUAGES %}