diff --git a/src/analysis/timetable.py b/src/analysis/timetable.py
index 49028e5f65803853cd852bffaffffe47716406c4..a5a792a479ba5ef0c5dcc1aaa91f0a953ae1410b 100644
--- a/src/analysis/timetable.py
+++ b/src/analysis/timetable.py
@@ -1,3 +1,20 @@
+# railway-opendata: scrape and analyze italian railway data
+# Copyright (C) 2023 Marco Aceti
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# 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 <http://www.gnu.org/licenses/>.
+
+
 import matplotlib.dates as mdates
 import matplotlib.pyplot as plt
 import pandas as pd