diff --git a/ui/jquery.ui.menu.js b/ui/jquery.ui.menu.js
index 83ff1b949..66601ef38 100644
--- a/ui/jquery.ui.menu.js
+++ b/ui/jquery.ui.menu.js
@@ -301,10 +301,13 @@ $.widget( "ui.menu", {
 
 	_startOpening: function( submenu ) {
 		clearTimeout( this.timer );
-		
-		//Don't open if already open fixes a Firefox bug that caused a .5 pixel shift in the submenu position when mousing over the carat icon
-		if ( submenu.attr( "aria-hidden" ) !== "true" ) return;
-		
+
+		// Don't open if already open fixes a Firefox bug that caused a .5 pixel
+		// shift in the submenu position when mousing over the carat icon
+		if ( submenu.attr( "aria-hidden" ) !== "true" ) {
+			return;
+		}
+
 		var self = this;
 		self.timer = setTimeout( function() {
 			self._close();