diff --git a/sbin/dhclient/bpf.c b/sbin/dhclient/bpf.c
index 911acb49407..60a9d74b673 100644
--- a/sbin/dhclient/bpf.c
+++ b/sbin/dhclient/bpf.c
@@ -221,7 +221,6 @@ if_register_receive(struct interface_info *info)
 	if (ioctl(info->rfdesc, BIOCSETF, &p) < 0)
 		error("Can't install packet filter program: %m");
 
-#ifdef BIOCSETWF
 	/* Set up the bpf write filter program structure. */
 	p.bf_len = dhcp_bpf_wfilter_len;
 	p.bf_insns = dhcp_bpf_wfilter;
@@ -234,7 +233,6 @@ if_register_receive(struct interface_info *info)
 
 	if (ioctl(info->rfdesc, BIOCLOCK, NULL) < 0)
 		error("Cannot lock bpf");
-#endif
 }
 
 ssize_t