diff --git a/src/packet.cpp b/src/packet.cpp
index 930a449..5946740 100644
--- a/src/packet.cpp
+++ b/src/packet.cpp
@@ -124,7 +124,6 @@ struct tcp_hdr {
 #define TH_URG 0x20
 #define TH_ECE 0x40
 #define TH_CWR 0x80
-#define TH_FLAGS (TH_FIN | TH_SYN | TH_RST | TH_ACK | TH_URG | TH_ECE | TH_CWR)
   u_short th_win; /* window */
   u_short th_sum; /* checksum */
   u_short th_urp; /* urgent pointer */