--- a/dnstop.c
+++ b/dnstop.c
@@ -71,11 +71,6 @@ static const char *Version = "@VERSION@"
 #define ETHERTYPE_IPV6 0x86DD
 #endif
 
-#if defined(__linux__) || defined(__GLIBC__) || defined(__GNU__)
-#define uh_dport dest
-#define uh_sport source
-#endif
-
 typedef struct {
     inX_addr src;
     int count;
