diff --git a/contrib/ipfilter/tools/ipf_y.y b/contrib/ipfilter/tools/ipf_y.y
index 2ce4291f2ec8..82307dec0328 100644
--- a/contrib/ipfilter/tools/ipf_y.y
+++ b/contrib/ipfilter/tools/ipf_y.y
@@ -10,8 +10,6 @@
 #include <sys/ioctl.h>
 #include <syslog.h>
 #ifdef IPFILTER_BPF
-# include "pcap-bpf.h"
-# define _NET_BPF_H_
 # include <pcap.h>
 #endif
 #include "netinet/ip_pool.h"