diff --git a/docs/installationguide/debian.rst b/docs/installationguide/debian.rst
index 4be860a560..2b2acdc77c 100644
--- a/docs/installationguide/debian.rst
+++ b/docs/installationguide/debian.rst
@@ -98,6 +98,7 @@ To make sure zoneminder can read the configuration file, run the following comma
 ::
 
     sudo a2enconf zoneminder
+    sudo a2enmod cgi
     sudo systemctl reload apache2.service
     sudo systemctl restart zoneminder.service
     sudo systemctl status zoneminder.service