diff --git a/libc/msr/wrmsr.cpp b/libc/msr/wrmsr.cpp
index 600f767b..eabb9ccc 100644
--- a/libc/msr/wrmsr.cpp
+++ b/libc/msr/wrmsr.cpp
@@ -17,7 +17,7 @@
     You should have received a copy of the GNU Lesser General Public License
     along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
 
-    msr/rdmsr.cpp
+    msr/wrmsr.cpp
     Sets a model specific register.
 
 *******************************************************************************/