diff --git a/libsofia-sip-ua/nta/nta.c b/libsofia-sip-ua/nta/nta.c
index e4a1327d0b3f353ae615086d249c2bf51dcbbc3b..08222d596781a3c13ec2a3f6cb7b64028c24116c 100644
--- a/libsofia-sip-ua/nta/nta.c
+++ b/libsofia-sip-ua/nta/nta.c
@@ -75,14 +75,6 @@
 #include "sofia-sip/nta_stateless.h"
 #include "sofia-sip/url_tag.h"
 
-#if !defined(random) && defined(HAVE_WIN32)
-#define random rand
-#endif
-
-#if !defined(EMSGSIZE) && defined(HAVE_WIN32)
-#define EMSGSIZE WSAEMSGSIZE
-#endif
-
 #include <stddef.h>
 #include <stdlib.h>
 #include <stdio.h>