diff --git a/django/contrib/sitemaps/templates/sitemap_index.xml b/django/contrib/sitemaps/templates/sitemap_index.xml
index 9f39bb879f..a2bcce85dc 100644
--- a/django/contrib/sitemaps/templates/sitemap_index.xml
+++ b/django/contrib/sitemaps/templates/sitemap_index.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemapindex/0.9">
+<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
 {% for location in sitemaps %}<sitemap><loc>{{ location|escape }}</loc></sitemap>{% endfor %}
 </sitemapindex>