diff --git a/setup/functions b/setup/functions
index 12c6586c..167b27b8 100644
--- a/setup/functions
+++ b/setup/functions
@@ -360,6 +360,7 @@ EOT
         ubuntu1804)
             a2enmod ssl
             a2enmod rewrite
+            a2enmod proxy
             a2enconf mailtrain
             systemctl restart apache2
             ;;