diff --git a/node/node.d.ts b/node/node.d.ts
index 75c33c388ce839..dfa8c9665fd606 100644
--- a/node/node.d.ts
+++ b/node/node.d.ts
@@ -823,6 +823,7 @@ declare module "child_process" {
         kill(signal?: string): void;
         send(message: any, sendHandle?: any): void;
         disconnect(): void;
+        unref(): void;
     }
 
     export function spawn(command: string, args?: string[], options?: {