diff --git a/highcharts/highstock.d.ts b/highcharts/highstock.d.ts
index ac4064ddd1..d1b21da62e 100644
--- a/highcharts/highstock.d.ts
+++ b/highcharts/highstock.d.ts
@@ -3,8 +3,6 @@
 // Definitions by: David Deutsch <http://github.com/DavidKDeutsch>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
-
-
 interface HighstockChartObject extends HighchartsChartObject {
     options: HighstockOptions;
 }
@@ -81,9 +79,9 @@ interface HighstockScrollbarOptions {
 }
 
 interface HighstockOptions extends HighchartsOptions {
-    navigator?: HighstockNavigatorOptions; 
-    rangeSelector?: HighstockRangeSelectorOptions; 
-    scrollbar?: HighstockScrollbarOptions; 
+    navigator?: HighstockNavigatorOptions;
+    rangeSelector?: HighstockRangeSelectorOptions;
+    scrollbar?: HighstockScrollbarOptions;
 }
 
 interface HighstockChart {
@@ -92,7 +90,7 @@ interface HighstockChart {
 }
 
 interface HighchartsStatic {
-    StockChart: HighstockChart; 
+    StockChart: HighstockChart;
 }
 
 interface JQuery {
diff --git a/highcharts/index.d.ts b/highcharts/index.d.ts
index 7185587190..4ca5fc9cb6 100644
--- a/highcharts/index.d.ts
+++ b/highcharts/index.d.ts
@@ -3,6 +3,8 @@
 // Definitions by: Damiano Gambarotto <http://github.com/damianog>, Dan Lewi Harkestad <http://github.com/baltie>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
+/// <reference path="./highstock.d.ts" />
+
 interface HighchartsPosition {
     align?: string;
     verticalAlign?: string;
diff --git a/highcharts/tsconfig.json b/highcharts/tsconfig.json
index 2651f0bc61..735490820e 100644
--- a/highcharts/tsconfig.json
+++ b/highcharts/tsconfig.json
@@ -14,6 +14,8 @@
     },
     "files": [
         "index.d.ts",
-        "highcharts-tests.ts"
+        "highstock.d.ts",
+        "highcharts-tests.ts",
+        "highstock-tests.ts"
     ]
 }
\ No newline at end of file