diff --git a/usr.bin/calendar/Makefile b/usr.bin/calendar/Makefile
index ad577f4c9d0..0989fe43fcc 100644
--- a/usr.bin/calendar/Makefile
+++ b/usr.bin/calendar/Makefile
@@ -1,4 +1,5 @@
 #	@(#)Makefile	8.1 (Berkeley) 6/6/93
+# $FreeBSD$
 
 PROG=	calendar
 SRCS=   calendar.c io.c day.c ostern.c paskha.c
diff --git a/usr.bin/calendar/calendar.c b/usr.bin/calendar/calendar.c
index fc6f7664e11..5bff6d713bd 100644
--- a/usr.bin/calendar/calendar.c
+++ b/usr.bin/calendar/calendar.c
@@ -29,6 +29,8 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
+ *
+ * $FreeBSD$
  */
 
 #ifndef lint
diff --git a/usr.bin/calendar/calendar.h b/usr.bin/calendar/calendar.h
index 1a95fa2eee8..2e7adfa15d2 100644
--- a/usr.bin/calendar/calendar.h
+++ b/usr.bin/calendar/calendar.h
@@ -29,6 +29,8 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
+ *
+ * $FreeBSD$
  */
 
 
diff --git a/usr.bin/calendar/paskha.c b/usr.bin/calendar/paskha.c
index 47f686fa2a5..e107e18df32 100644
--- a/usr.bin/calendar/paskha.c
+++ b/usr.bin/calendar/paskha.c
@@ -22,6 +22,8 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
+ *
+ * $FreeBSD$
  */
 
 #include <stdio.h>