diff --git a/libs/sofia-sip/libsofia-sip-ua/su/sofia-sip/su_errno.h b/libs/sofia-sip/libsofia-sip-ua/su/sofia-sip/su_errno.h
index c11570c4eb..223f7cf018 100644
--- a/libs/sofia-sip/libsofia-sip-ua/su/sofia-sip/su_errno.h
+++ b/libs/sofia-sip/libsofia-sip-ua/su/sofia-sip/su_errno.h
@@ -53,11 +53,6 @@ SOFIAPUBFUN int su_errno(void);
 /** Set the su error. */
 SOFIAPUBFUN int su_seterrno(int);
 
-#if !SU_HAVE_WINSOCK
-#define su_errno() (errno)
-#define su_seterrno(n) ((errno = (n)), -1)
-#endif
-
 #if defined(__APPLE_CC__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__)
 #ifndef EBADMSG
 #define EBADMSG EFAULT
diff --git a/libs/sofia-sip/libsofia-sip-ua/su/su_errno.c b/libs/sofia-sip/libsofia-sip-ua/su/su_errno.c
index 7b888bbacc..3ab183edc0 100644
--- a/libs/sofia-sip/libsofia-sip-ua/su/su_errno.c
+++ b/libs/sofia-sip/libsofia-sip-ua/su/su_errno.c
@@ -157,4 +157,7 @@ const char *su_strerror(int errcode)
   return strerror(errcode);
 }
 
+int su_errno(void) { return errno; }
+int su_seterrno(int n) { errno = n; return -1; }
+
 #endif /* SU_HAVE_WINSOCK */