diff --git a/game/modules/tome/data/birth/descriptors.lua b/game/modules/tome/data/birth/descriptors.lua
index 857354c900180701f8e42c5bffc850108231a5d1..02b05895c2e8268956547876b32737ab092976f8 100644
--- a/game/modules/tome/data/birth/descriptors.lua
+++ b/game/modules/tome/data/birth/descriptors.lua
@@ -186,6 +186,7 @@ newBirthDescriptor{
 		"Unfair game setting",
 		"All zone levels increased by 50% + 3",
 		"All creature talent levels increased by 50%",
+		"Player can earn Nightmare version of achievements if also playing in Roguelike permadeath mode.",
 	},
 	descriptor_choices =
 	{