diff --git a/farm_control.lua b/farm_control.lua
index f9a791b..7ee626b 100644
--- a/farm_control.lua
+++ b/farm_control.lua
@@ -16,7 +16,7 @@ local HARVESTER_SIGNAL_TIME = 2
 
 function pull_items (src, dest)
     local src = peripheral.wrap(src)
-    if src.size() < 1 return nil end
+    if src.size() < 1 then return nil end
     for slot, _ in pairs(src.list()) do
         src.pushItems(dest, slot)
     end
@@ -75,7 +75,7 @@ while true do
             load_stack(item, STORAGE, HARVESTER)
         end
     end
-    send_harvester()
+    send_harvester(HARVESTER_RELAY)
     os.sleep(SLEEP_TIME)
     pull_items(HARVESTER, STORAGE)
 end