diff --git a/lib/util.js b/lib/util.js
index 9427e8ec..7dec724c 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -62,16 +62,15 @@
         this.checkArgs          = function(argsParam, names) {
             var error,
                 msg         = '',
-                i           = 0,
                 n           = names.length,
                 isLength    = n === argsParam.length,
                 template    = '{{ name }} coud not be empty!';
             
             if (!isLength)
-                for (i = 0; i < n; i++)
-                    if (!argsParam[i]) {
+                while (--n)
+                    if (argsParam[n] === undefined) {
                         msg     = Util.render(template, {
-                            name: names[i]
+                            name: names[n]
                         });
                         
                         error   = new Error(msg);