diff --git a/src/main/programs/turtle-miner-fibo.lua b/src/main/programs/turtle-miner-fibo.lua
index 6d621d6..6567b9b 100644
--- a/src/main/programs/turtle-miner-fibo.lua
+++ b/src/main/programs/turtle-miner-fibo.lua
@@ -200,11 +200,11 @@ local function mineRow(distance)
   print("row: " .. state["dataCurrentRow"]+1 .. "/" .. state["dataGoalRows"] .. ", pathProgress: " .. state["dataCurrentPathProgress"]+1 .. "/" .. state["dataGoalPathProgress"])
 end
 
-local function mineChunk(size)
+local function mineChunk()
   state = getState()
 
-  state["dataGoalRows"] = size
-  state["dataGoalPathProgress"] = 3*(size-1)+1
+  state["dataGoalRows"] = state["dataCurrentFibo"]
+  state["dataGoalPathProgress"] = 3*(state["dataCurrentFibo"]-1)+1
 
   for i=state["dataCurrentRow"], state[dataGoalRows]-1 do
     mineRow(state["dataGoalPathProgress"])
@@ -236,7 +236,7 @@ local function mineFibo()
   state = getState()
 
   while true do
-    mineChunk(state["dataCurrentFibo"])
+    mineChunk()
 
     --go to next chunk
     turtle.turnRight()