diff --git a/hppk.go b/hppk.go
index d3f6791..4991120 100644
--- a/hppk.go
+++ b/hppk.go
@@ -10,8 +10,8 @@
 // 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 package hppk
 
diff --git a/hppk_test.go b/hppk_test.go
index 762f523..eb56c10 100644
--- a/hppk_test.go
+++ b/hppk_test.go
@@ -10,8 +10,8 @@
 // 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 package hppk