diff --git a/src/com/wentch/redkale/net/sncp/Sncp.java b/src/com/wentch/redkale/net/sncp/Sncp.java
index f60482f80..1f2665833 100644
--- a/src/com/wentch/redkale/net/sncp/Sncp.java
+++ b/src/com/wentch/redkale/net/sncp/Sncp.java
@@ -37,7 +37,7 @@ public abstract class Sncp {
     private static final java.lang.reflect.Type GROUPS_TYPE2 = new TypeToken<String[]>() {
     }.getType();
 
-    public static final String DEFAULT_PROTOCOL = "TCP";
+    public static final String DEFAULT_PROTOCOL = "UDP";
 
     static final String LOCALPREFIX = "_DynLocal";