diff --git a/chartjs/chart.d.ts b/chartjs/chart.d.ts
index a73ecc94e..d85f9b476 100644
--- a/chartjs/chart.d.ts
+++ b/chartjs/chart.d.ts
@@ -115,6 +115,7 @@ interface CircularInstance extends ChartInstance {
     update: () => void;
     addData: (valuesArray: CircularChartData[], index: number) => void;
     removeData: (index: number) => void;
+    segments: Array<CircularChartData>;
 }
 
 interface LineChartOptions extends ChartOptions {