diff --git a/WidgetFolderBrowserTest.m b/WidgetFolderBrowserTest.m
index 44aa848..f1f40d1 100644
--- a/WidgetFolderBrowserTest.m
+++ b/WidgetFolderBrowserTest.m
@@ -19,7 +19,7 @@ function WidgetFolderBrowserTest()
     end
 
     %% set listener callback
-    addlistener(obj, 'event_file', @fcnCallback_testEvent);
+    addlistener(obj, 'file', 'PostSet', @fcnCallback_testEvent);
 
 end