1 files changed, 3 insertions, 2 deletions
diff --git a/lib/constant.js b/lib/constant.js
index 706507f..ecaff80 100644
--- a/lib/constant.js
+++ b/lib/constant.js
@@ -4,7 +4,8 @@ import rest from 'lodash/rest';
 
 export default rest(function(values) {
     var args = [null].concat(values);
-    return function (cb) {
-        return cb.apply(this, args);
+    return function () {
+        var callback = [].slice.call(arguments).pop();
+        return callback.apply(this, args);
     };
 });