diff --git a/lib/callHandler/dojo.js b/lib/callHandler/dojo.js
index 45de7f5..7a47a4d 100644
--- a/lib/callHandler/dojo.js
+++ b/lib/callHandler/dojo.js
@@ -42,6 +42,7 @@ define([
 	});
 
 	handlers.register('mixin', util.isModuleProperty('dojo/_base/lang', 'mixin'), handleMixin);
+	handlers.register('_mixin', util.isModuleProperty('dojo/_base/lang', '_mixin'), handleMixin);
 	handlers.register('safeMixin', util.isModuleProperty('dojo/_base/declare', 'safeMixin'), handleMixin);
 	handlers.register('extend', util.isModuleProperty('dojo/_base/lang', 'extend'), function (callInfo, args) {
 		var destination = args[0].evaluated.getProperty('prototype');