diff --git a/src/cropit.js b/src/cropit.js
index a58a9ae..017aaa2 100644
--- a/src/cropit.js
+++ b/src/cropit.js
@@ -99,7 +99,11 @@ class Cropit {
     this.zoomer = new Zoomer();
 
     if (this.options.allowDragNDrop) {
-      $.event.props.push('dataTransfer');
+      if ($.event.props === undefined) {
+        $.event.addProp('dataTransfer');
+      } else {
+        $.event.props.push('dataTransfer');
+      }
     }
 
     this.bindListeners();