diff --git a/kai/woodfarm.lua b/kai/woodfarm.lua
index afd7ca0..ea759fa 100644
--- a/kai/woodfarm.lua
+++ b/kai/woodfarm.lua
@@ -215,10 +215,12 @@ local state_machine = {
     ["RESUPPLY_FUEL"] = function()
         greedy_move(FUEL_TARGET.x, FUEL_TARGET.z, FUEL_TARGET.o)
 
-        local fuel_count = math.ceil(FUEL_LEVEL_TARGET - turtle.getFuelLevel() / 80)
-        turtle.select(REFUEL_SLOT)
-        ensure_item_count(fuel_count)
-        turtle.refuel()
+        if turtle.getFuelLevel() < FUEL_LEVEL_TARGET then
+            local fuel_count = math.ceil((FUEL_LEVEL_TARGET - turtle.getFuelLevel()) / 80)
+            turtle.select(REFUEL_SLOT)
+            ensure_item_count(fuel_count)
+            turtle.refuel()
+        end
 
         T.state.current_row = 0
         T.state.current_tree = 0