diff --git a/dwarf.lua b/dwarf.lua
index 7629da6..ff13e97 100644
--- a/dwarf.lua
+++ b/dwarf.lua
@@ -1,3 +1,6 @@
+-- This is free and unencumbered software released into the public domain.
+-- For more information, please refer to <http://unlicense.org/>
+
 local charset = ("\
 \x00☺☻♥♦♣♠•◘○◙♂♀♪♫☼\
 ►◄↕‼¶§▬↨↑↓→←∟↔▲▼\