1 files changed, 1 insertions, 1 deletions
diff --git a/src/gram.h b/src/gram.h
index eb5c2904..dd649f5d 100644
--- a/src/gram.h
+++ b/src/gram.h
@@ -16,7 +16,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef GRAM_H_
 # define GRAM_H_