diff --git a/src/sockmap.c b/src/sockmap.c
index 4ff0c1d..c2214ea 100644
--- a/src/sockmap.c
+++ b/src/sockmap.c
@@ -212,7 +212,7 @@ log("send to server from buf");
 			param->clioffset = param->cliinbuf = 0;
 			if(fromclient) TOCLIENTBUF = 1;
 		}
-		sasize = sizeof(param->sinsr);
+		sasize = SASIZE(&param->sinsr);
 		res = param->srv->so._sendto(param->sostate, param->remsock, (char *)param->clibuf + param->clioffset, (int)MIN(inclientbuf, fromclient), 0, (struct sockaddr*)&param->sinsr, sasize);
 		if(res <= 0) {
 			TOSERVER = 0;
@@ -258,7 +258,7 @@ log("send to client from buf");
 			param->srvinbuf = param->srvoffset = 0;
 			continue;
 		}
-		sasize = sizeof(param->sincr);
+		sasize = SASIZE(&param->sincr);
 		res = param->srv->so._sendto(param->sostate, param->clisock, (char *)param->srvbuf + param->srvoffset, (int)MIN(inserverbuf,fromserver), 0, (struct sockaddr*)&param->sincr, sasize);
 		if(res <= 0) {
 			TOCLIENT = 0;