diff --git a/ChangeLog b/ChangeLog
index e8f4e8542b..d7b6be11ac 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Feb 26 01:34:38 2009  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: more MSG_* constants.
+
 Thu Feb 26 00:21:21 2009  Tanaka Akira  <akr@fsij.org>
 
 	* ext/socket/option.c (sockopt_level): extracted from sockopt_level_m.
diff --git a/ext/socket/mkconstants.rb b/ext/socket/mkconstants.rb
index 1443ca5c1e..b43e95f001 100644
--- a/ext/socket/mkconstants.rb
+++ b/ext/socket/mkconstants.rb
@@ -417,6 +417,14 @@ MSG_SEND
 MSG_HAVEMORE
 MSG_RCVMORE
 MSG_COMPAT
+MSG_PROXY       
+MSG_FIN         
+MSG_SYN         
+MSG_CONFIRM     
+MSG_RST         
+MSG_ERRQUEUE    
+MSG_NOSIGNAL    
+MSG_MORE        
 
 SOL_SOCKET
 SOL_IP