diff --git a/lib/http2.js b/lib/http2.js
index 8d9f6a50f6..770bd6611d 100644
--- a/lib/http2.js
+++ b/lib/http2.js
@@ -429,7 +429,7 @@ function Server (requestListener, options) {
   //server.setOptions(options);
   this.addListener('request', requestListener);
 }
-process.inherits(Server, net.Server);
+sys.inherits(Server, net.Server);
 exports.Server = Server;
 exports.createServer = function (requestListener, options) {
   return new Server(requestListener, options);