diff --git a/scripts/upgrade b/scripts/upgrade
index 47a0ce1..1c5cd34 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -121,7 +121,7 @@ popd || ynh_die
 ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
 
 # Create a dedicated systemd config
-ynh_add_systemd_config
+ynh_add_systemd_config --others_var="port tls_port domain"
 
 #=================================================
 # MODIFY A CONFIG FILE