diff --git a/Quake/net_sys.h b/Quake/net_sys.h
index 2978feb1..19cb0026 100644
--- a/Quake/net_sys.h
+++ b/Quake/net_sys.h
@@ -62,7 +62,7 @@
 
 #if defined(__FreeBSD__) || defined(__DragonFly__)	|| \
     defined(__OpenBSD__) || defined(__NetBSD__)		|| \
-    defined(__MACOSX__)
+    defined(__MACOSX__)  || defined(__FreeBSD_kernel__)
 /* struct sockaddr has unsigned char sa_len as the first member in BSD
  * variants and the family member is also an unsigned char instead of an
  * unsigned short. This should matter only when PLATFORM_UNIX is defined,