diff --git a/src/js/dropify.js b/src/js/dropify.js
index c078a76..3da006f 100644
--- a/src/js/dropify.js
+++ b/src/js/dropify.js
@@ -373,7 +373,7 @@ Dropify.prototype.setContainerSize = function()
 Dropify.prototype.isTouchDevice = function()
 {
     return (('ontouchstart' in window) ||
-            (navigator.MaxTouchPoints > 0) ||
+            (navigator.maxTouchPoints > 0) ||
             (navigator.msMaxTouchPoints > 0));
 };