diff --git a/node-client/src/web-socket-handler.ts b/node-client/src/web-socket-handler.ts
index 2206eaf648..de1838e701 100644
--- a/node-client/src/web-socket-handler.ts
+++ b/node-client/src/web-socket-handler.ts
@@ -43,7 +43,7 @@ export class WebSocketHandler {
 
     public static handleStandardInput(conn: ws.connection, stdin: stream.Readable | any) {
         stdin.on('data', (data) => {
-            const buff = Buffer.from(data.length + 1);;
+            const buff = Buffer.from(data, data.length + 1);
             buff.writeInt8(0, 0);
             if (data instanceof Buffer) {
                 data.copy(buff, 1);