diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index fd994b68105..80409c374df 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,8 @@
+2002-09-07  Adam Megacz <adam@xwt.org>
+
+	* java/net/natPlainDatagramSocket.cc: include ws2tcpip.h for
+	definition of IP_TOS.
+
 2002-09-04  Michael Koch  <konqueror@gmx.de>
 
 	* java/net/DatagramSocket.java
diff --git a/libjava/java/net/natPlainDatagramSocketImpl.cc b/libjava/java/net/natPlainDatagramSocketImpl.cc
index ca7bbc97899..1c631637871 100644
--- a/libjava/java/net/natPlainDatagramSocketImpl.cc
+++ b/libjava/java/net/natPlainDatagramSocketImpl.cc
@@ -13,6 +13,7 @@ details.  */
 #ifdef WIN32
 #include <errno.h>
 #include <string.h>
+#include <ws2tcpip.h>
 #ifndef ENOPROTOOPT
 #define ENOPROTOOPT 109
 #endif