diff --git a/src/window.py b/src/window.py
index a1daf01..8271a0f 100644
--- a/src/window.py
+++ b/src/window.py
@@ -14,7 +14,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
-# SPDX-License-Identifier: GPL-3.0-only 
+# SPDX-License-Identifier: GPL-3.0-only
 
 import os
 import pathlib