diff --git a/scripts/upgrade b/scripts/upgrade
index 36ca1a6..728deba 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -116,6 +116,7 @@ chown $app:$app "$final_path/config.js"
 #=================================================
 ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
 
+env_path="$PATH"
 # Create a dedicated systemd config
 ynh_add_systemd_config