diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..8df2c50
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,15 @@
+    decal - a GNU cal-like program with CalDAV synchronization 
+    Copyright (C) 2022 Yessiest
+
+    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 3 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/>.
\ No newline at end of file