1 files changed, 3 insertions, 3 deletions
diff --git a/ip.h b/ip.h
index 891a89cd..a0c2c6f6 100644
--- a/ip.h
+++ b/ip.h
@@ -33,8 +33,8 @@
  *	@(#)ip.h	8.2 (Berkeley) 6/1/94
  */
 
-#ifndef TCPDUMP_IP_H
-#define TCPDUMP_IP_H
+#ifndef netdissect_ip_h
+#define netdissect_ip_h
 
 /*
  * Definitions for internet protocol version 4.
@@ -161,4 +161,4 @@ struct	ip_timestamp {
 #define	IPTTLDEC	1		/* subtracted when forwarding */
 
 #define	IP_MSS		576		/* default maximum segment size */
-#endif /* TCPDUMP_IP_H */
+#endif /* netdissect_ip_h */