diff --git a/types/wavesurfer.js/index.d.ts b/types/wavesurfer.js/index.d.ts
index 0624104ad9..85364ae50e 100644
--- a/types/wavesurfer.js/index.d.ts
+++ b/types/wavesurfer.js/index.d.ts
@@ -1,6 +1,6 @@
-// Type definitions for wavesurfer.js 2.0
+// Type definitions for wavesurfer.js 3.2
 // Project: https://github.com/katspaugh/wavesurfer.js
-// Definitions by: Yusuke Higuchi <https://github.com/higuri>
+// Definitions by: Yusuke Higuchi <https://github.com/higuri>, Egor Gorbachev <https://github.com/kubk>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.2
 
@@ -118,6 +118,7 @@ declare namespace WaveSurfer {
         barHeight?: number;
         barWidth?: number;
         barGap?: number;
+        barRadius?: number;
         closeAudioContext?: boolean;
         container: string | HTMLElement;
         cursorColor?: string;