diff --git a/admin/javascript/LeftAndMain.Menu.js b/admin/javascript/LeftAndMain.Menu.js
index 5fee1f216..c54ed9aee 100644
--- a/admin/javascript/LeftAndMain.Menu.js
+++ b/admin/javascript/LeftAndMain.Menu.js
@@ -204,7 +204,10 @@
 			fromContainingPanel: {
 				ontoggle: function(e){
 					this.toggleClass('collapsed', $(e.target).hasClass('collapsed'));
-					$(window).resize(); //Trigger jLayout
+
+					// Trigger synthetic resize event. Avoid native window.resize event
+					// since it causes other behaviour which should be reserved for actual window dimension changes.
+					$('.cms-container').trigger('windowresize');
 				}
 			},