diff --git a/libs/stfu/stfu.c b/libs/stfu/stfu.c
index a43129e50a..866ae57616 100644
--- a/libs/stfu/stfu.c
+++ b/libs/stfu/stfu.c
@@ -23,7 +23,7 @@
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
- * THOSE WHO DISAGREE MAY CERTIANLY STFU
+ * THOSE WHO DISAGREE MAY CERTAINLY STFU
  */
 #include "stfu.h"
 
diff --git a/libs/stfu/stfu.h b/libs/stfu/stfu.h
index dd47d49640..17f01e3256 100644
--- a/libs/stfu/stfu.h
+++ b/libs/stfu/stfu.h
@@ -23,7 +23,7 @@
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE. 
  *
- * THOSE WHO DISAGREE MAY CERTIANLY STFU
+ * THOSE WHO DISAGREE MAY CERTAINLY STFU
  */
 
 #ifndef STFU_H