diff --git a/types/three/src/nodes/gpgpu/ComputeNode.d.ts b/types/three/src/nodes/gpgpu/ComputeNode.d.ts
index 7d6ad8c1b..fcdab244e 100644
--- a/types/three/src/nodes/gpgpu/ComputeNode.d.ts
+++ b/types/three/src/nodes/gpgpu/ComputeNode.d.ts
@@ -19,7 +19,7 @@ export default class ComputeNode extends Node {
 export const compute: (
     node: NodeRepresentation,
     count: number,
-    workgroupSize: number[],
+    workgroupSize?: number[],
 ) => ShaderNodeObject<ComputeNode>;
 
 declare module "../tsl/TSLCore.js" {