diff --git a/lib/validations.js b/lib/validations.js
index 48df1122..7e1a62e9 100644
--- a/lib/validations.js
+++ b/lib/validations.js
@@ -383,7 +383,9 @@ var validators = {
 
 function getConfigurator(name, opts) {
   return function () {
-    configure(this, name, arguments, opts);
+    var args = Array.prototype.slice.call(arguments);
+    args[1] = args[1] || {};
+    configure(this, name, args, opts);
   };
 }
 
@@ -649,7 +651,8 @@ function configure(cls, validation, args, opts) {
   }
   conf.validation = validation;
   args.forEach(function (attr) {
-    cls._validations.push([attr, conf, opts]);
+    var validation = opts ? [attr, conf, opts] : [attr, conf];
+    cls._validations.push(validation);
   });
 }