diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 775e86ccd..762644931 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,8 @@
+2008-09-07  Danny Smith  <dannysmith@users.sourceforge.net>
+
+	* include/ws2tcpip.h (IPV6_MREQ): Fix typo.
+	Thanks to Richard Hughes for report.
+
 2008-09-06  Chris Sutcliffe  <ir0nh34d@users.sourceforge.net>
 
 	* Makefile.in: Adjust to new naming standard for MinGW while maintaining old
diff --git a/winsup/w32api/include/ws2tcpip.h b/winsup/w32api/include/ws2tcpip.h
index 26f4f377c..2eac66ac8 100644
--- a/winsup/w32api/include/ws2tcpip.h
+++ b/winsup/w32api/include/ws2tcpip.h
@@ -275,7 +275,7 @@ struct ipv6_mreq {
 	struct in6_addr ipv6mr_multiaddr;
 	unsigned int    ipv6mr_interface;
 };
-typedef struct ipv6_mreq IPV6_MREG;
+typedef struct ipv6_mreq IPV6_MREQ;
 
 struct in6_pktinfo {
 	IN6_ADDR ipi6_addr;