diff --git a/sys/sys/_timespec.h b/sys/sys/_timespec.h
index 3338c9f0e87e..e5ded73f1685 100644
--- a/sys/sys/_timespec.h
+++ b/sys/sys/_timespec.h
@@ -27,7 +27,6 @@
  * 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.
- * from: FreeBSD: src/sys/sys/time.h,v 1.43 2000/03/20 14:09:05 phk Exp
  */
 
 #ifndef _SYS__TIMESPEC_H_
diff --git a/sys/sys/mdioctl.h b/sys/sys/mdioctl.h
index d4e0a623d117..da387f8524c2 100644
--- a/sys/sys/mdioctl.h
+++ b/sys/sys/mdioctl.h
@@ -34,8 +34,6 @@
  * SUCH DAMAGE.
  *
  * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$
- *
- * From: src/sys/sys/vnioctl.h,v 1.4
  */
 
 #ifndef _SYS_MDIOCTL_H_
diff --git a/sys/sys/timespec.h b/sys/sys/timespec.h
index f8547ca71c4e..48560524bc47 100644
--- a/sys/sys/timespec.h
+++ b/sys/sys/timespec.h
@@ -27,7 +27,6 @@
  * 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.
- * from: FreeBSD: src/sys/sys/time.h,v 1.43 2000/03/20 14:09:05 phk Exp
  */
 
 #ifndef _SYS_TIMESPEC_H_