diff --git a/apps/enclave/libsockthread/src/strl.c b/apps/enclave/libsockthread/src/strl.c
index 792ba5ae9..7958a8dbe 100644
--- a/apps/enclave/libsockthread/src/strl.c
+++ b/apps/enclave/libsockthread/src/strl.c
@@ -12,6 +12,8 @@
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * $Id$
  */
 
 #include <stddef.h>
diff --git a/apps/enclave/libsockthread/src/strl.h b/apps/enclave/libsockthread/src/strl.h
index 9fd935c78..879d20f33 100644
--- a/apps/enclave/libsockthread/src/strl.h
+++ b/apps/enclave/libsockthread/src/strl.h
@@ -26,6 +26,8 @@
  * LIABILITY, WHETHER IN CONTRACT, STRICT 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.
+ *
+ * $Id$
  */
 
 /*