diff --git a/Documentation/Introduction/Index.rst b/Documentation/Introduction/Index.rst
index 87b1dd82..c96ea84c 100644
--- a/Documentation/Introduction/Index.rst
+++ b/Documentation/Introduction/Index.rst
@@ -22,7 +22,7 @@ It supports multiple languages and custom crawler implementations.
 Under the hood, the extension makes use of the
 `eliashaeussler/cache-warmup <https://github.com/eliashaeussler/cache-warmup>`__
 library which provides the core cache warmup implementation. In addition,
-`EXT:sitemap_locator <https://extensions.typo3.org/extension/sitemap_locator>`
+`EXT:sitemap_locator <https://extensions.typo3.org/extension/sitemap_locator>`__
 is used to locate XML sitemaps.
 
 ..  _features: