diff --git a/jquery-ui.multidatespicker.js b/jquery-ui.multidatespicker.js
index 85546af..ee0cd8b 100644
--- a/jquery-ui.multidatespicker.js
+++ b/jquery-ui.multidatespicker.js
@@ -1,12 +1,19 @@
 /*
- * MultiDatesPicker v1.6.4
- * http://multidatespickr.sourceforge.net/
+ * MultiDatesPicker v1.6.5
+ * https://dubrox.github.io/Multiple-Dates-Picker-for-jQuery-UI
  * 
- * Copyright 2014, Luca Lauretta
+ * Copyright 2017, Luca Lauretta
  * Dual licensed under the MIT or GPL version 2 licenses.
  */
-(function( $ ){
-	$.extend($.ui, { multiDatesPicker: { version: "1.6.4" } });
+
+(function(factory) {
+  if (typeof define === "function" && define.amd) {
+    define(["jquery", "jquery-ui-dist"], factory);
+  } else {
+    factory(jQuery);
+  }
+}(function( $ ){
+	$.extend($.ui, { multiDatesPicker: { version: "1.6.5" } });
 	
 	$.fn.multiDatesPicker = function(method) {
 		var mdp_arguments = arguments;
@@ -371,7 +378,7 @@
 				
 				switch(this.multiDatesPicker.mode) {
 					case 'normal':
-						for(option in options)
+						for(var option in options)
 							switch(option) {
 								case 'maxPicks':
 								case 'minPicks':
@@ -495,4 +502,4 @@
 	// Workaround for #4055
 	// Add another global to avoid noConflict issues with inline event handlers
 	window['DP_jQuery_' + dpuuid] = $;
-})( jQuery );
\ No newline at end of file
+}));
diff --git a/package.json b/package.json
index a62afea..900c35d 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "description": "Extension to the jQuery UI Calendar allowing multiple selections",
   "author": "Luca Lauretta <luca@lauretta.info>",
   "license": "(MIT OR GPLv2)",
-  "version": "1.6.4",
+  "version": "1.6.5",
   "main": "jquery-ui.multidatespicker.js",
   "repository": {
     "type": "git",