diff --git a/scripts/upgrade b/scripts/upgrade
index a0fe9fa..0e66a9d 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -65,6 +65,7 @@ done
 
 # Final upgrade to the final version
 new_version=$(ynh_app_upstream_version)
+source_id="main"
 ynh_print_info --message="Upgrading app from $current_version to $new_version"
 upgrade_dolibarr