diff --git a/lib/libc/locale/collcmp.c b/lib/libc/locale/collcmp.c
index b74ffaff50db..63155e521406 100644
--- a/lib/libc/locale/collcmp.c
+++ b/lib/libc/locale/collcmp.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.
+ *
+ * $Id$
  */
 
 #include <ctype.h>