diff --git a/highcharts/highcharts.d.ts b/highcharts/highcharts.d.ts
index cb48604e38..0e2be306c6 100644
--- a/highcharts/highcharts.d.ts
+++ b/highcharts/highcharts.d.ts
@@ -888,7 +888,7 @@ interface HighchartsPieChart {
     borderColor?: string;
     borderWidth?: number;
     center?: string[];
-    colors?: string;
+    colors?: string[];
     cursor?: string;
     dataLabels?: HighchartsDataLabels;
     depth?: number;