diff --git a/conf/portability.h b/conf/portability.h
index a3c6302544..54a25d8507 100644
--- a/conf/portability.h
+++ b/conf/portability.h
@@ -22,5 +22,5 @@
 /* The source code copied from BIND for inet_addr/inet_aton
    doesn't actually define the functions without these macros.  */
 
-#define NEED_INETADDR
-#define NEED_INETATON
+#define NEED_INETADDR	1
+#define NEED_INETATON	1