diff --git a/js/jquery.mobile.forms.select.js b/js/jquery.mobile.forms.select.js
index 87084bd3..921aaf5c 100644
--- a/js/jquery.mobile.forms.select.js
+++ b/js/jquery.mobile.forms.select.js
@@ -350,7 +350,7 @@ $.widget( "mobile.selectmenu", $.mobile.widget, {
 				return options.index( this );
 			}).get();
 
-		if( !self.options.nativeMenu && forceRebuild || select[0].options.length > self.list.find('li').length ){
+		if( !self.options.nativeMenu && ( forceRebuild || select[0].options.length > self.list.find('li').length )){
 			self._buildList();
 		}