diff --git a/code/modules/games/cah.dm b/code/modules/games/cah.dm
index 2b9286a8a3..dc7e1dddae 100644
--- a/code/modules/games/cah.dm
+++ b/code/modules/games/cah.dm
@@ -1,3 +1,7 @@
+// This is a parody of Cards Against Humanity (https://en.wikipedia.org/wiki/Cards_Against_Humanity)
+// which is licensed under CC BY-NC-SA 2.0, the full text of which can be found at the following URL:
+// https://creativecommons.org/licenses/by-nc-sa/2.0/legalcode
+
 /obj/item/weapon/deck/cah
 	name = "\improper CAG deck (white)"
 	desc = "The ever-popular Cards Against The Galaxy word game. Warning: may include traces of broken fourth wall. This is the white deck."