diff --git a/src/query/DomQuery.js b/src/query/DomQuery.js
index a9c02f9..1065edd 100644
--- a/src/query/DomQuery.js
+++ b/src/query/DomQuery.js
@@ -361,7 +361,7 @@ define([
 
       if (type == 'checkbox') {
         value(element.checked);
-      } else if (tagName == 'select' && element.getAttribute('multiple')) {
+      } else if (tagName == 'select' && element.getAttribute('multiple') !== null) {
         var values = [];
         var selectedOptions = element.selectedOptions;
         if (selectedOptions) {