diff --git a/game/modules/tome/data/general/traps/complex.lua b/game/modules/tome/data/general/traps/complex.lua
index 0d2b6652dbf3ed9ec304cb99901c6fdab346d438..75a0b38e2bdf6b9cab538bc70adb5feb3cd1555e 100644
--- a/game/modules/tome/data/general/traps/complex.lua
+++ b/game/modules/tome/data/general/traps/complex.lua
@@ -144,7 +144,7 @@ newEntity{ base = "TRAP_COMPLEX",
 		-- Add a lasting map effect
 		game.level.map:addEffect(self,
 			self.x, self.y, 5,
-			engine.DamageType.POISON, self.dam,
+			engine.DamageType.POISON, {dam=self.dam, power=self.dam},
 			self.rad,
 			5, nil,
 			{type="vapour"},