diff --git a/inventoryManager.lua b/inventoryManager.lua
index 4cb2ef7..d74d390 100644
--- a/inventoryManager.lua
+++ b/inventoryManager.lua
@@ -478,7 +478,9 @@ local function main()
 
         -- Task 12: Supply chest (builder / manifest-based stocking)
         function()
-            if cfg.SUPPLY_CHEST == "" or #cfg.SUPPLY_MANIFEST == 0 then return end
+            if cfg.SUPPLY_CHEST == "" or #cfg.SUPPLY_MANIFEST == 0 then
+                while true do sleep(3600) end
+            end
             log.info("SUPPLY", "Stocking %s with %d item types", cfg.SUPPLY_CHEST, #cfg.SUPPLY_MANIFEST)
             while true do
                 pcall(ops.supplyChest)
@@ -488,7 +490,9 @@ local function main()
 
         -- Task 13: Network order/command listener
         function()
-            if not ctx.networkModem then return end
+            if not ctx.networkModem then
+                while true do sleep(3600) end
+            end
             while true do
                 local event, side, channel, replyChannel, message, distance = os.pullEvent("modem_message")
                 if channel == cfg.ORDER_CHANNEL and type(message) == "table" then