diff --git a/cubedig.lua b/cubedig.lua
index c50496f..d7cb2f2 100644
--- a/cubedig.lua
+++ b/cubedig.lua
@@ -119,7 +119,7 @@ elseif dy < 1 then
 	move( "down" )
 end
 for y = (math.abs(dy) > 1 and 2 or 1), math.abs(dy) do
-	if (y % 3 == 2) or (math.abs(dy) - y == 1) then
+	if (y % 3 == 2) or (math.abs(dy) - y == 1) or (math.abs(dy) == 1) then
 		for x = 1, dx do
 			for z = 1, dz do
 				UDdig(dy / math.abs(dy), y * (dy / math.abs(dy)), dy, false)