diff --git a/java/src/com/tightvnc/vncviewer/RfbProto.java b/java/src/com/tightvnc/vncviewer/RfbProto.java
index 5aa2af5..fcdbbfa 100644
--- a/java/src/com/tightvnc/vncviewer/RfbProto.java
+++ b/java/src/com/tightvnc/vncviewer/RfbProto.java
@@ -239,6 +239,7 @@
 
     if (viewer.socketFactory == null) {
       sock = new Socket(host, port);
+      sock.setTcpNoDelay(true);
     } else {
       try {
 	Class factoryClass = Class.forName(viewer.socketFactory);