diff --git a/src/main/java/tconstruct/items/tools/Cleaver.java b/src/main/java/tconstruct/items/tools/Cleaver.java
index 1967890e795..b1e23563e13 100644
--- a/src/main/java/tconstruct/items/tools/Cleaver.java
+++ b/src/main/java/tconstruct/items/tools/Cleaver.java
@@ -150,7 +150,7 @@ public void onUpdate (ItemStack stack, World world, Entity entity, int par4, boo
             ItemStack equipped = player.getCurrentEquippedItem();
             if (equipped == stack)
             {
-                player.addPotionEffect(new PotionEffect(Potion.digSlowdown.id, 1, 2));
+                player.addPotionEffect(new PotionEffect(Potion.digSlowdown.id, 2, 2, true));
             }
         }
     }