diff --git a/lib/libipsec/ipsec_dump_policy.c b/lib/libipsec/ipsec_dump_policy.c
index 35b8586dc300..6aa977c68604 100644
--- a/lib/libipsec/ipsec_dump_policy.c
+++ b/lib/libipsec/ipsec_dump_policy.c
@@ -1,4 +1,3 @@
-/*	$FreeBSD$	*/
 /*	$KAME: ipsec_dump_policy.c,v 1.11 2000/05/07 05:29:47 itojun Exp $	*/
 
 /*
@@ -30,6 +29,9 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/socket.h>
diff --git a/lib/libipsec/ipsec_get_policylen.c b/lib/libipsec/ipsec_get_policylen.c
index 9986de0e5d0a..911b2ce46428 100644
--- a/lib/libipsec/ipsec_get_policylen.c
+++ b/lib/libipsec/ipsec_get_policylen.c
@@ -1,4 +1,3 @@
-/*	$FreeBSD$	*/
 /*	$KAME: ipsec_get_policylen.c,v 1.5 2000/05/07 05:25:03 itojun Exp $	*/
 
 /*
@@ -30,6 +29,9 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/types.h>
 #include <sys/param.h>
 
diff --git a/lib/libipsec/ipsec_strerror.c b/lib/libipsec/ipsec_strerror.c
index d53a9e3cadc6..203b6517edb4 100644
--- a/lib/libipsec/ipsec_strerror.c
+++ b/lib/libipsec/ipsec_strerror.c
@@ -1,4 +1,3 @@
-/*	$FreeBSD$	*/
 /*	$KAME: ipsec_strerror.c,v 1.7 2000/07/30 00:45:12 itojun Exp $	*/
 
 /*
@@ -30,6 +29,9 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/types.h>
 #include <sys/param.h>
 
diff --git a/lib/libipsec/pfkey.c b/lib/libipsec/pfkey.c
index 6cdea34bd3a6..355f7149a7f8 100644
--- a/lib/libipsec/pfkey.c
+++ b/lib/libipsec/pfkey.c
@@ -1,4 +1,3 @@
-/*	$FreeBSD$	*/
 /*	$KAME: pfkey.c,v 1.39 2001/03/05 18:22:17 thorpej Exp $	*/
 
 /*
@@ -30,6 +29,9 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/socket.h>
diff --git a/lib/libipsec/pfkey_dump.c b/lib/libipsec/pfkey_dump.c
index b6734758c7a5..e4d813cd511c 100644
--- a/lib/libipsec/pfkey_dump.c
+++ b/lib/libipsec/pfkey_dump.c
@@ -1,4 +1,3 @@
-/*	$FreeBSD$	*/
 /*	$KAME: pfkey_dump.c,v 1.28 2001/06/27 10:46:51 sakane Exp $	*/
 
 /*
@@ -30,6 +29,9 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/socket.h>
diff --git a/lib/libipsec/test-policy.c b/lib/libipsec/test-policy.c
index 960de201adbf..d8467e3d4c06 100644
--- a/lib/libipsec/test-policy.c
+++ b/lib/libipsec/test-policy.c
@@ -1,4 +1,3 @@
-/*	$FreeBSD$	*/
 /*	$KAME: test-policy.c,v 1.14 2000/12/27 11:38:11 sakane Exp $	*/
 
 /*
@@ -30,6 +29,9 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/socket.h>