diff --git a/react b/react
index bdea347..6d507be 100644
--- a/react
+++ b/react
@@ -84,7 +84,7 @@ do
     --getting refilled anymore)
     
     local deltaFuel = reactor.getFuelAmountMax() - reactor.getFuelAmount()
-    if (deltaFuel > 1000) --more than 1 bucket
+    if (deltaFuel > 2000) --more than 2 buckets (1 for core possibly not being full, another for waste)
     then
         mon.setCursorPos(1, 5)
         mon.write("REFUEL!")