diff --git a/nodes.lua b/nodes.lua
index f222c48..9aa0d9d 100644
--- a/nodes.lua
+++ b/nodes.lua
@@ -784,7 +784,7 @@ local function fumarole_onTimer(pos, elapsed)
 	local smoke_time_adj = 1
 
 	local posAbove = {x = pos.x, y = pos.y + 1, z = pos.z}
-	local extinguish = minetest.get_node(posAbove).name ~= "air"
+	local extinguish = inNether and minetest.get_node(posAbove).name ~= "air"
 
 	if extinguish or (canCatchFire and math.floor(elapsed) % 7 == 0) then