diff --git a/init.lua b/init.lua
index 94c6db0..f26af4c 100644
--- a/init.lua
+++ b/init.lua
@@ -69,7 +69,7 @@ local shade = function( origin, target, background_color )
 		end
 	end
 	return color
-end 
+end
 
 x_offset_by_sample = { 0, 1, 0, 1, 0, 1,-1,-1,-1 }
 y_offset_by_sample = { 0, 0, 1, 1,-1,-1, 0, 1,-1 }