diff --git a/miner.lua b/miner.lua
index 9029318..53a4d51 100644
--- a/miner.lua
+++ b/miner.lua
@@ -22,8 +22,8 @@ local HIGHER_LIMIT = 128;
 local robot = robotApi.create()
 
 local MAX_INVENTORY_BLOCKS = 16 * 64
-local ADDITIONAL_FUEL_NEEDED = 128
-local MIN_FUEL_NEEDED = (config.size * 2) + INITIAL_TARGET_Y + MAX_INVENTORY_BLOCKS + ADDITIONAL_FUEL_NEEDED
+local ADDITIONAL_FUEL_NEEDED = 256
+local MIN_FUEL_NEEDED = 2 * ((config.size * 2) + INITIAL_TARGET_Y) + MAX_INVENTORY_BLOCKS + ADDITIONAL_FUEL_NEEDED
 
 local miner = {
   robot = robot,