diff --git a/lib/isc/win32/net.c b/lib/isc/win32/net.c
index 80ab89807e..33b51f2d93 100644
--- a/lib/isc/win32/net.c
+++ b/lib/isc/win32/net.c
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: net.c,v 1.9.18.10 2008/08/08 05:15:09 marka Exp $ */
+/* $Id: net.c,v 1.9.18.11 2009/09/23 00:47:30 each Exp $ */
 
 #include <config.h>
 
@@ -197,7 +197,7 @@ try_ipv6only(void) {
 	ipv6only_result = ISC_R_SUCCESS;
 
 close:
-	closeocket(s);
+	closesocket(s);
 	return;
 #endif /* IPV6_V6ONLY */
 }