diff --git a/item_falling.lua b/item_falling.lua
index 7e3aeec..9724eb3 100644
--- a/item_falling.lua
+++ b/item_falling.lua
@@ -32,7 +32,7 @@ local function fallingfor(self)
 	while true do
 		local node = minetest.get_node(pos)
 		if node.name == "ignore" then break end
-		if api.air[node.name] then return end
+		if not api.air[node.name] then return end
 		pos.y = pos.y - 1
 	end
 	pos.y = oy