diff --git a/highcharts/highcharts-more.d.ts b/highcharts/highcharts-more.d.ts
index dd5950fe35..14f4940784 100644
--- a/highcharts/highcharts-more.d.ts
+++ b/highcharts/highcharts-more.d.ts
@@ -3,6 +3,8 @@
 // Definitions by: Maciej Suchecki <http://github.com/mc-suchecki>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
+import * as Highcharts from "highcharts";
+
 declare var HighchartsMore: (H: Highcharts.Static) => Highcharts.Static;
 export = HighchartsMore;
 export as namespace HighchartsMore;
diff --git a/highcharts/highstock.d.ts b/highcharts/highstock.d.ts
index 332ea3d5ca..6784e83eb1 100644
--- a/highcharts/highstock.d.ts
+++ b/highcharts/highstock.d.ts
@@ -3,6 +3,8 @@
 // Definitions by: David Deutsch <http://github.com/DavidKDeutsch>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
+import * as Highcharts from "highcharts";
+
 declare namespace __Highstock {
     interface ChartObject extends Highcharts.ChartObject {
         options: Options;
@@ -96,27 +98,29 @@ declare namespace __Highstock {
 }
 
 
-interface JQuery {
-    highcharts(type: "StockChart"): __Highstock.ChartObject;
-    /**
-     * Creates a new Highcharts.Chart for the current JQuery selector; usually
-     * a div selected by $('#container')
-     * @param {Highcharts.Options} options Options for this chart
-     * @return current {JQuery} selector the current JQuery selector
-     **/
-    highcharts(type: "StockChart", options: __Highstock.Options): JQuery;
-    /**
-     * Creates a new Highcharts.Chart for the current JQuery selector; usually
-     * a div selected by $('#container')
-     * @param {Highcharts.Options} options Options for this chart
-     * @param callback Callback function used to manipulate the constructed chart instance
-     * @return current {JQuery} selector the current JQuery selector
-     **/
-    highcharts(type: "StockChart", options: __Highstock.Options, callback: (chart: __Highstock.ChartObject) => void): JQuery;
+declare global {
+    interface JQuery {
+        highcharts(type: "StockChart"): __Highstock.ChartObject;
+        /**
+         * Creates a new Highcharts.Chart for the current JQuery selector; usually
+         * a div selected by $('#container')
+         * @param {Highcharts.Options} options Options for this chart
+         * @return current {JQuery} selector the current JQuery selector
+         **/
+        highcharts(type: "StockChart", options: __Highstock.Options): JQuery;
+        /**
+         * Creates a new Highcharts.Chart for the current JQuery selector; usually
+         * a div selected by $('#container')
+         * @param {Highcharts.Options} options Options for this chart
+         * @param callback Callback function used to manipulate the constructed chart instance
+         * @return current {JQuery} selector the current JQuery selector
+         **/
+        highcharts(type: "StockChart", options: __Highstock.Options, callback: (chart: __Highstock.ChartObject) => void): JQuery;
 
 
-    highcharts(type: string): Highcharts.ChartObject;
-    highcharts(type: string, options: Highcharts.Options): JQuery;
-    highcharts(type: string, options: Highcharts.Options, callback: (chart: Highcharts.ChartObject) => void): JQuery;
+        highcharts(type: string): Highcharts.ChartObject;
+        highcharts(type: string, options: Highcharts.Options): JQuery;
+        highcharts(type: string, options: Highcharts.Options, callback: (chart: Highcharts.ChartObject) => void): JQuery;
+    }
 }