diff --git a/init.lua b/init.lua
index ccfa3cf..acaca95 100644
--- a/init.lua
+++ b/init.lua
@@ -127,6 +127,7 @@ snow.is_uneven = function(pos)
 		local found
 		local foundx
 		local foundy
+		local foundz
 		for x=-1,1 do
 		for z=-1,1 do
 			local node = get_node({x=pos.x+x,y=pos.y,z=pos.z+z})
diff --git a/src/snowball.lua b/src/snowball.lua
index cb7468c..484e814 100644
--- a/src/snowball.lua
+++ b/src/snowball.lua
@@ -130,6 +130,12 @@ minetest.override_item("default:snow", {
 			}
 		}
 	},
+	node_box = {
+		type = "leveled",
+		fixed = {
+			{-0.5, -0.5, -0.5, 0.5, -0.5+2/16, 0.5},
+		},
+	},
 	groups = {cracky=3, crumbly=3, choppy=3, oddly_breakable_by_hand=3,falling_node=1, melts=2, float=1},
 	sunlight_propagates = true,
 	--Disable placement prediction for snow.
diff --git a/src/util.lua b/src/util.lua
index 20fdd2d..1ddf4f9 100644
--- a/src/util.lua
+++ b/src/util.lua
@@ -48,7 +48,7 @@ local function loadConfig(path)
   		io.close(file)
 		for line in io.lines(path) do
 			if line:sub(1,1) ~= "#" then
-				i, v = line:match("^(%S*) = (%S*)")
+				local i, v = line:match("^(%S*) = (%S*)")
 				if i and v then
 					if v == "true" then v = true end
 					if v == "false" then v = false end