diff --git a/depends.txt b/depends.txt
index 676c66a..fcfc3bc 100644
--- a/depends.txt
+++ b/depends.txt
@@ -2,3 +2,4 @@ default
 mobs
 maptools?
 zombie?
+snow?
diff --git a/yeti.lua b/yeti.lua
index 13c0876..999b371 100644
--- a/yeti.lua
+++ b/yeti.lua
@@ -79,34 +79,34 @@ mobs:register_arrow("pmobs:snowball", {
 })
 
 -- snowball throwing item
+if not minetest.get_modpath("snow") then
+	local snowball_GRAVITY=9
+	local snowball_VELOCITY=19
 
-local snowball_GRAVITY=9
-local snowball_VELOCITY=19
+	-- shoot snowball
+	local mobs_shoot_snowball=function (item, player, pointed_thing)
+		local playerpos=player:getpos()
+		local obj=minetest.add_entity({x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, "pmobs:snowball")
+		local dir=player:get_look_dir()
+		obj:get_luaentity().velocity = snowball_VELOCITY -- needed for api internal timing
+		obj:setvelocity({x=dir.x*snowball_VELOCITY, y=dir.y*snowball_VELOCITY, z=dir.z*snowball_VELOCITY})
+		obj:setacceleration({x=dir.x*-3, y=-snowball_GRAVITY, z=dir.z*-3})
+		item:take_item()
+		return item
+	end
 
--- shoot snowball
-local mobs_shoot_snowball=function (item, player, pointed_thing)
-	local playerpos=player:getpos()
-	local obj=minetest.add_entity({x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, "pmobs:snowball")
-	local dir=player:get_look_dir()
-	obj:get_luaentity().velocity = snowball_VELOCITY -- needed for api internal timing
-	obj:setvelocity({x=dir.x*snowball_VELOCITY, y=dir.y*snowball_VELOCITY, z=dir.z*snowball_VELOCITY})
-	obj:setacceleration({x=dir.x*-3, y=-snowball_GRAVITY, z=dir.z*-3})
-	item:take_item()
-	return item
+	-- override default snow to shoot snowballs
+	minetest.override_item("default:snow", {
+
+		--Disable placement prediction for snow.
+		node_placement_prediction = "",
+		on_construct = function(pos)
+			if minetest.get_item_group(minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name, "soil") > 0 then
+				minetest.set_node({x=pos.x, y=pos.y-1, z=pos.z}, {name="default:dirt_with_snow"})
+			end
+		end,
+		
+		on_use = mobs_shoot_snowball
+	})
 end
-
--- override default snow to shoot snowballs
-minetest.override_item("default:snow", {
-
-	--Disable placement prediction for snow.
- 	node_placement_prediction = "",
-	on_construct = function(pos)
-		if minetest.get_item_group(minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name, "soil") > 0 then
-			minetest.set_node({x=pos.x, y=pos.y-1, z=pos.z}, {name="default:dirt_with_snow"})
-		end
-	end,
-
-	on_use = mobs_shoot_snowball
-})
-
 mobs:alias_mob("mobs:yeti", "pmobs:yeti")