diff --git a/game/modules/tome/data/zones/maze/grids.lua b/game/modules/tome/data/zones/maze/grids.lua
index c13215b0cebeb8be3396cf7ef3983d636202ae11..c94e7e75155210b39c1b9004d58525e33d9813ef 100644
--- a/game/modules/tome/data/zones/maze/grids.lua
+++ b/game/modules/tome/data/zones/maze/grids.lua
@@ -35,6 +35,7 @@ newEntity{
 	name = "huge crack in the floor", image = "terrain/cracks/ground_9_01.png",
 	display = '.', color=colors.BLACK, back_color=colors.BLACK,
 	nice_editer = cracks_editer,
+	pass_projectile = true,
 	block_move = function(self, x, y, who, act)
 		if not who or not act or not who.player then return true end
 		require("engine.ui.Dialog"):yesnoLongPopup("Crack in the floor", "This area appears to have been hit by a huge tremor, breaking the floor in a huge crack.\nYou think you can jump to the level below.", 400, function(ret) if ret then