diff --git a/config/core.extension.yml b/config/core.extension.yml
index bb9a601..45f572d 100644
--- a/config/core.extension.yml
+++ b/config/core.extension.yml
@@ -59,6 +59,7 @@ module:
   simple_sitemap: 0
   simple_sitemap_engines: 0
   simple_sitemap_views: 0
+  sitemap: 0
   speakerdeck_field: 0
   stage_file_proxy: 0
   syslog: 0