diff --git a/scripts/actions/reset_default_config b/scripts/actions/reset_default_config
index c4e280e..d6b9782 100755
--- a/scripts/actions/reset_default_config
+++ b/scripts/actions/reset_default_config
@@ -20,7 +20,7 @@ ynh_abort_if_errors
 # RETRIEVE ARGUMENTS
 #=================================================
 
-app=${YNH_APP_INSTANCE_NAME:-$YNH_APP_ID}
+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)