diff --git a/types/node/index.d.ts b/types/node/index.d.ts
index a331173657..72b1e1765c 100644
--- a/types/node/index.d.ts
+++ b/types/node/index.d.ts
@@ -370,6 +370,7 @@ declare namespace NodeJS {
         stdout: Socket;
         stderr: Socket;
         stdin: Socket;
+        openStdin(): Socket;
         argv: string[];
         argv0: string;
         execArgv: string[];