diff --git a/README.md b/README.md
index 0cc3320..248a0f2 100644
--- a/README.md
+++ b/README.md
@@ -160,8 +160,7 @@ _Add-ons for search engine optimization._
 
 * [bda.plone.gtm](https://github.com/bluedynamics/bda.plone.gtm) - Google Tag Manager Integration.
 * [collective.behavior.seo](https://github.com/collective/collective.behavior.seo) - Adds extra fields used for SEO optimisation.
-
-
+* [collective.splitsitemap](https://github.com/collective/collective.splitsitemap) - Provides a cached split sitemap on big public sites.
 
 ## Authentication