diff --git a/highcharts/highcharts-tests.ts b/highcharts/highcharts-tests.ts
index 464f536d9..9918df953 100644
--- a/highcharts/highcharts-tests.ts
+++ b/highcharts/highcharts-tests.ts
@@ -23,10 +23,10 @@ var animate: HighchartsAnimation = {
 
 var gradient: HighchartsGradient = {
     linearGradient: {
-        x0: 0,
-        y0: 0,
-        x1: 500,
-        y1: 500
+        x1: 0,
+        y1: 0,
+        x2: 500,
+        y2: 500
     },
     stops: [
         [0, 'rgb(255, 255, 255)'],
@@ -136,4 +136,4 @@ var highChartSettings: HighchartsOptions = {
 
 var container = $("#container").highcharts(highChartSettings, (chart) => {
     chart.series[0].setVisible(true, true);
-});
\ No newline at end of file
+});
diff --git a/highcharts/highcharts.d.ts b/highcharts/highcharts.d.ts
index 584d61c9b..9bda29782 100644
--- a/highcharts/highcharts.d.ts
+++ b/highcharts/highcharts.d.ts
@@ -166,7 +166,7 @@ interface HighchartsChartEvents {
 
 interface HighchartsGradient {
     linearGradient?: {
-        x0: number; y0: number; x1: number; y1: number;
+        x1: number; y1: number; x2: number; y2: number;
     };
     radialGradient?: {
         cx: number; cy: number; r: number;