diff --git a/scripts/renew_copyright_header.sh b/scripts/renew_copyright_header.sh
index 6690ef1..a5c587b 100755
--- a/scripts/renew_copyright_header.sh
+++ b/scripts/renew_copyright_header.sh
@@ -19,7 +19,7 @@
 # and the Lesser GNU General Public License along with this program.
 # If not, see <https://www.gnu.org/licenses/>.
 
-TEMPLATE_LINE_LENGHT=21
+TEMPLATE_LINE_LENGHT=20
 remove() {
     extension="$1"
     file="$2"