diff --git a/dominic/canemine.lua b/dominic/canemine.lua
index 144e4a1..3b746fc 100644
--- a/dominic/canemine.lua
+++ b/dominic/canemine.lua
@@ -128,7 +128,7 @@ function digShaft()
     selectCobble()
     turtle.placeUp()
     turtle.down()
-    depth = digDeep(turtle.down, turtle.digDown, turtle.inspectDown, -1)
+    depth = digDeep(turtle.down, turtle.digDown, turtle.inspectDown, 1)
     turtle.turnLeft()
     digDeep(turtle.up, noop, noop, depth)
     turtle.turnLeft()