diff --git a/jquery.gridster/gridster-tests.ts b/jquery.gridster/gridster-tests.ts
index 80c71e5359..3672c9555f 100644
--- a/jquery.gridster/gridster-tests.ts
+++ b/jquery.gridster/gridster-tests.ts
@@ -16,7 +16,7 @@ var options: GridsterOptions = {
 	}
 };
 
-let gridster: Gridster = $('.gridster ul').gridster(options).data('gridster');
+var gridster: Gridster = $('.gridster ul').gridster(options).data('gridster');
 gridster.add_widget('<li class="new">The HTML of the widget...</li>', 2, 1);
 gridster.remove_widget($('gridster li').eq(3).get(0));
 var json = gridster.serialize<SerializeData>();
diff --git a/jquery.gridster/gridster.d.ts b/jquery.gridster/gridster.d.ts
index abbb4c8e00..e003f0ebcc 100644
--- a/jquery.gridster/gridster.d.ts
+++ b/jquery.gridster/gridster.d.ts
@@ -248,7 +248,3 @@ interface Gridster {
 	**/
 	disable(): Gridster;
 }
-
-interface JQuery {
-    data(key: "gridster"): Gridster;
-}
\ No newline at end of file
diff --git a/jquery/jquery.d.ts b/jquery/jquery.d.ts
index 3599c808fa..ad9e934551 100644
--- a/jquery/jquery.d.ts
+++ b/jquery/jquery.d.ts
@@ -1545,18 +1545,18 @@ interface JQuery {
      * @param value The new data value; it can be any Javascript type including Array or Object.
      */
     data(key: string, value: any): JQuery;
-    /**
-     * Store arbitrary data associated with the matched elements.
-     *
-     * @param obj An object of key-value pairs of data to update.
-     */
-    data(obj: { [key: string]: any; }): JQuery;
     /**
      * Return the value at the named data store for the first element in the jQuery collection, as set by data(name, value) or by an HTML5 data-* attribute.
      *
      * @param key Name of the data stored.
      */
     data(key: string): any;
+    /**
+     * Store arbitrary data associated with the matched elements.
+     *
+     * @param obj An object of key-value pairs of data to update.
+     */
+    data(obj: { [key: string]: any; }): JQuery;
     /**
      * Return the value at the named data store for the first element in the jQuery collection, as set by data(name, value) or by an HTML5 data-* attribute.
      */
diff --git a/royalslider/royalslider-tests.ts b/royalslider/royalslider-tests.ts
index 88e44a6fba..4246ec90b3 100644
--- a/royalslider/royalslider-tests.ts
+++ b/royalslider/royalslider-tests.ts
@@ -100,7 +100,7 @@ jQuery(document).ready(function () {
 // Another example: $(".royalSlider").royalSlider('goTo', 3);
 // But it's recommended to get instance once if you have many calls:
 
-var slider = $(".royalSlider").royalSlider().data('royalSlider');
+var slider: RoyalSlider.RoyalSlider = $(".royalSlider").royalSlider().data('royalSlider');
 
 slider.goTo(3); // go to slide with id
 slider.next();  // next slide
diff --git a/royalslider/royalslider.d.ts b/royalslider/royalslider.d.ts
index 3f06b41b58..5dd7c2771f 100644
--- a/royalslider/royalslider.d.ts
+++ b/royalslider/royalslider.d.ts
@@ -493,6 +493,4 @@ interface JQuery {
     * @param options The options
     */
     royalSlider(options?: RoyalSlider.RoyalSliderOptions): JQuery;
-
-    data(key: "royalSlider"): RoyalSlider.RoyalSlider;
 }
\ No newline at end of file