diff --git a/cargo-elevator.lua b/cargo-elevator.lua
index 376a305..66749bb 100644
--- a/cargo-elevator.lua
+++ b/cargo-elevator.lua
@@ -26,7 +26,7 @@ local FLOORS = {
         end,
         detect = function ()
             local relay = "redstone_relay_21"
-            peripheral.call(relay, "getInput", "top")
+            return peripheral.call(relay, "getInput", "top")
         end,
         call = function ()
             local relay = "redstone_relay_21"
@@ -44,7 +44,7 @@ local FLOORS = {
         end,
         detect = function ()
             local relay = "redstone_relay_22"
-            peripheral.call(relay, "getInput", "top")
+            return peripheral.call(relay, "getInput", "top")
         end,
         call = function ()
             local relay = "redstone_relay_22"
@@ -62,7 +62,7 @@ local FLOORS = {
         end,
         detect = function ()
             local relay = "redstone_relay_23"
-            peripheral.call(relay, "getInput", "top")
+            return peripheral.call(relay, "getInput", "top")
         end,
         call = function ()
             local relay = "redstone_relay_23"