diff --git a/options/license/threeparttable b/options/license/threeparttable
new file mode 100644
index 0000000000..498b728226
--- /dev/null
+++ b/options/license/threeparttable
@@ -0,0 +1,3 @@
+This file may be distributed, modified, and used in other works with just
+one restriction: modified versions must clearly indicate the modification
+(a name change, or a displayed message, or ?).