diff --git a/src/main/programs/turtle-treeFarmer.lua b/src/main/programs/turtle-treeFarmer.lua
index d392c3e..29a0d85 100644
--- a/src/main/programs/turtle-treeFarmer.lua
+++ b/src/main/programs/turtle-treeFarmer.lua
@@ -51,7 +51,7 @@ local function placeTree()
     local itemDetail = turtle.getItemDetail()
 
     if itemDetail ~= nil then
-      if itemDetail.name == "minecraft:oak_sapling" then
+      if itemDetail.name == "minecraft:spruce_sapling" then
         local blockFound, blockData = turtle.inspect()
         if not blockFound then
           turtle.up()
@@ -74,7 +74,7 @@ local function emptyInventory()
     turtle.select(i)
     itemDetail = turtle.getItemDetail()
     if itemDetail ~= nil then
-      if itemDetail.name == "minecraft:oak_log" then
+      if itemDetail.name == "minecraft:spruce_log" then
         turtle.refuel()
         turtle.dropDown()
       end
@@ -98,14 +98,18 @@ function main()
   else
     while true do
       blockFound, blockData = turtle.inspect()
-      if isWood(blockData) then
-        recursiveTreeFarming()
-        sleep(1)
+      if blockFound then
+        if isWood(blockData) then
+          recursiveTreeFarming()
+          sleep(1)
+          placeTree()
+          emptyInventory()
+        end
+        print("waiting...")
+        sleep(10)
+      else 
         placeTree()
-        emptyInventory()
       end
-      print("waiting...")
-      sleep(10)
     end
   end
 end