2 files changed, 2 insertions, 2 deletions

diff --git a/src/itree.c b/src/itree.c
index 04fa9e827a2..975f3a8e4fb 100644
--- a/src/itree.c
+++ b/src/itree.c
@@ -15,7 +15,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <math.h>
diff --git a/src/itree.h b/src/itree.h
index 248ea9b84d2..f1e2bf3bfde 100644
--- a/src/itree.h
+++ b/src/itree.h
@@ -15,7 +15,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef ITREE_H
 #define ITREE_H