diff --git a/headers/private/net/net_misc.h b/headers/private/net/net_misc.h
index 69e6252d1e..b86fc17c8b 100644
--- a/headers/private/net/net_misc.h
+++ b/headers/private/net/net_misc.h
@@ -16,8 +16,10 @@
 #define printf  dprintf
 #endif  
 
+#ifndef __HAIKU__
 /* Not really sure if this is safe... */
 #define EHOSTDOWN	(B_POSIX_ERROR_BASE + 45)
+#endif
 
 /* These are GCC only, so we'll need PPC version eventually... */
 struct quehead {