diff --git a/sys/net/bpf.c b/sys/net/bpf.c
index 67390c52018..63e868e6f3f 100644
--- a/sys/net/bpf.c
+++ b/sys/net/bpf.c
@@ -32,10 +32,11 @@
  * SUCH DAMAGE.
  *
  *      @(#)bpf.c	8.4 (Berkeley) 1/9/95
- *
- * $FreeBSD$
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include "opt_bpf.h"
 #include "opt_mac.h"
 #include "opt_netgraph.h"
diff --git a/sys/net/bpf_filter.c b/sys/net/bpf_filter.c
index 7ee4ef00b9a..e096152bb3b 100644
--- a/sys/net/bpf_filter.c
+++ b/sys/net/bpf_filter.c
@@ -32,10 +32,11 @@
  * SUCH DAMAGE.
  *
  *      @(#)bpf_filter.c	8.1 (Berkeley) 6/10/93
- *
- * $FreeBSD$
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/param.h>
 
 #ifdef sun