diff --git a/mine/client.lua b/mine/client.lua
index 9b46aee..fc22a1d 100644
--- a/mine/client.lua
+++ b/mine/client.lua
@@ -87,7 +87,7 @@ function digSafe(inspectAction, digAction)
             else
                 digAction()
                 -- gravel may take time to fall.
-                sleep(1)
+                sleep(2)
             end
         else
             -- No block in front of me. good