diff --git a/web_timeline/static/src/js/timeline_view.js b/web_timeline/static/src/js/timeline_view.js
index 0a6b65a9..9c9c3624 100644
--- a/web_timeline/static/src/js/timeline_view.js
+++ b/web_timeline/static/src/js/timeline_view.js
@@ -167,7 +167,7 @@ odoo.define('web_timeline.TimelineView', function (require) {
                 return +1;
             }
 
-            return grp1.content.locateCompare(grp2.content);
+            return grp1.content.localeCompare(grp2.content);
 
         },