diff --git a/addons/point_of_sale/static/src/js/Screens/ClientListScreen/ClientListScreen.js b/addons/point_of_sale/static/src/js/Screens/ClientListScreen/ClientListScreen.js
index 9c18b677c3b..0b0be008067 100644
--- a/addons/point_of_sale/static/src/js/Screens/ClientListScreen/ClientListScreen.js
+++ b/addons/point_of_sale/static/src/js/Screens/ClientListScreen/ClientListScreen.js
@@ -6,6 +6,7 @@ odoo.define('point_of_sale.ClientListScreen', function(require) {
     const { useListener } = require('web.custom_hooks');
 
     const { Observer, debounce } = owl;
+    const { isConnectionError } = require('point_of_sale.utils');
 
     /**
      * Render this screen using `showTempScreen` to select client.
@@ -163,7 +164,7 @@ odoo.define('point_of_sale.ClientListScreen', function(require) {
                 this.state.detailIsShown = false;
                 this.render();
             } catch (error) {
-                if (error.message.code < 0) {
+                if (isConnectionError(error)) {
                     await this.showPopup('OfflineErrorPopup', {
                         title: this.env._t('Offline'),
                         body: this.env._t('Unable to save changes.'),