diff --git a/mine/client.lua b/mine/client.lua
index 6323bce..9bb4f46 100644
--- a/mine/client.lua
+++ b/mine/client.lua
@@ -82,12 +82,15 @@ function digSafe(inspectAction, digAction)
         local status, block = inspectAction()
         if status then
             if block["name"]:lower():find("turtle") then
-                -- turtle in front of me. lets wait for it to move
+                -- turtle in front of me. its free space
                 return true
             else
                 digAction()
+                -- gravel may take time to fall.
+                sleep(0.6)
             end
         else
+            -- No block in front of me. good
             return true
         end
     end