diff --git a/lib/libc/net/getnameinfo.c b/lib/libc/net/getnameinfo.c
index cee07f6e0fe7..906ce3160d2e 100644
--- a/lib/libc/net/getnameinfo.c
+++ b/lib/libc/net/getnameinfo.c
@@ -109,8 +109,10 @@ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
 	if (sa == NULL)
 		return EAI_FAIL;
 
+#ifdef BSD4_4
 	if (sa->sa_len != salen)
 		return EAI_FAIL;
+#endif
 
 	family = sa->sa_family;
 	for (i = 0; afdl[i].a_af; i++)