diff --git a/turtles/mine.lua b/turtles/mine.lua
index bc01679..8191a14 100644
--- a/turtles/mine.lua
+++ b/turtles/mine.lua
@@ -226,7 +226,21 @@ end
 
 -- Mine a new shaft in front of the turtle
 function mine_shaft()
-    turtle.dig()
+    turn_abs(0)
+    while depth < SHAFT_DEPTH do
+        if turtle.detect() then
+            turtle.dig()
+        end
+        move_forward()
+    end
+    turn_abs(2)
+    while depth > 0 do
+        if turtle.detect() then
+            turtle.dig()
+        end
+        move_forward()
+    end
+    turn_abs(0)
 end
 
 -- Main function