diff --git a/xExtension-ImageProxy/README.md b/xExtension-ImageProxy/README.md
index 9bf53ec..748c590 100644
--- a/xExtension-ImageProxy/README.md
+++ b/xExtension-ImageProxy/README.md
@@ -28,7 +28,7 @@ The source code for the images.weserv.nl proxy can be found at [github.com/andri
 
 ### Apache configuration
 
-In order to use Apache `mod_rewrite`, you will need to set the following settings:
+In order to use Apache [mod_rewrite](https://httpd.apache.org/docs/current/mod/mod_rewrite.html), you will need to set the following settings:
 
 * `proxy_url` = **https://www.example.org/proxy/**