diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..2f870ec
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,3 @@
+The mod is licensed under MIT,
+except for the code parts which are copied from WorldEdit, which has the
+GNU Affero General Public License v3.0.