diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index a24134135..7d7ff6349 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2005-07-27  Christopher Faylor  <cgf@timesys.com>
+
+	* include/cygwin/in.h (INET_ADDRSTRLEN): Add new definition.
+
 2005-07-27  Christopher Faylor  <cgf@timesys.com>
 
 	* gendef: Use nocr to remove \r's from input.
diff --git a/winsup/cygwin/include/cygwin/in.h b/winsup/cygwin/include/cygwin/in.h
index ebb60ddfd..4227025f9 100644
--- a/winsup/cygwin/include/cygwin/in.h
+++ b/winsup/cygwin/include/cygwin/in.h
@@ -170,6 +170,8 @@ struct sockaddr_in
 #define INADDR_ALLHOSTS_GROUP	0xe0000001      /* 224.0.0.1   */
 #define INADDR_MAX_LOCAL_GROUP  0xe00000ff      /* 224.0.0.255 */
 
+#define INET_ADDRSTRLEN 16
+
 /* <asm/byteorder.h> contains the htonl type stuff.. */
 
 #include <asm/byteorder.h>