diff --git a/game/modules/tome/data/achievements/kills.lua b/game/modules/tome/data/achievements/kills.lua
index d071906f0615af85670c9612b115e2fbece3a027..37892e35707bea901982215b74635f51653c3a64 100644
--- a/game/modules/tome/data/achievements/kills.lua
+++ b/game/modules/tome/data/achievements/kills.lua
@@ -112,7 +112,7 @@ newAchievement{
 	desc = [[Ate 20 bosses.]],
 	mode = "player",
 	can_gain = function(self, who)
-		if who.rank < 35 then return false end
+		if who.rank < 3.5 then return false end
 		self.nb = (self.nb or 0) + 1
 		if self.nb >= 20 then return true end
 	end,