diff --git a/joli.js b/joli.js
index eef5129..e87a21c 100644
--- a/joli.js
+++ b/joli.js
@@ -38,7 +38,7 @@ var joli = {
     getType: function(obj) {
         if (typeof obj === "undefined" || obj === null || (typeof obj === "number" && isNaN(obj))) {
             return false;
-        } else if (obj.constructor === Array) {
+        } else if (obj.constructor === Array || (Array.isArray && Array.isArray(obj))) {
             return "array";
         } else {
             return typeof obj;