diff --git a/src/sigar_format.c b/src/sigar_format.c
index 0be1f3a5..d77d8772 100644
--- a/src/sigar_format.c
+++ b/src/sigar_format.c
@@ -372,12 +372,9 @@ static char *sigar_inet_ntop(int af, const void *src, char *dst, int cnt)
     }
 }
 #define sigar_inet_ntop_errno GetLastError()
-#elif !defined(NETWARE) && !defined(__hpux)
+#else
 #define sigar_inet_ntop inet_ntop
 #define sigar_inet_ntop_errno errno
-#else
-#define sigar_inet_ntop(af, src, dst, size) NULL
-#define sigar_inet_ntop_errno EINVAL
 #endif
 
 SIGAR_DECLARE(int) sigar_net_address_to_string(sigar_t *sigar,