diff --git a/scripts/upgrade b/scripts/upgrade
index b4352bd..8650f78 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -17,6 +17,7 @@ ynh_script_progression --message="Loading installation settings..." --weight=1
 app=$YNH_APP_INSTANCE_NAME
 
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+port=$(ynh_app_setting_get --app=$app --key=port)
 
 #=================================================
 # CHECK VERSION