--- runtime/net.c	2011-03-22 12:27:49.000000000 +0100
+++ runtime/net.c	2011-04-29 13:30:47.249997266 +0200
@@ -721,7 +721,7 @@
 						SIN(allowIP.addr.NetAddr)->sin_port   = 0;
 						memcpy(&(SIN(allowIP.addr.NetAddr)->sin_addr.s_addr),
 							&(SIN6(res->ai_addr)->sin6_addr.s6_addr32[3]),
-							sizeof (struct sockaddr_in));
+							sizeof (in_addr_t));
 
 						if((iRet = AddAllowedSenderEntry(ppRoot, ppLast, &allowIP,
 								iSignificantBits))