diff --git a/Programs/monitor-system/domain/multiblock/toggle-multiblock-work.lua b/Programs/monitor-system/domain/multiblock/toggle-multiblock-work.lua
index b0ce22b..b5039ef 100755
--- a/Programs/monitor-system/domain/multiblock/toggle-multiblock-work.lua
+++ b/Programs/monitor-system/domain/multiblock/toggle-multiblock-work.lua
@@ -5,8 +5,8 @@ Alarm = require("api.sound.alarm")
 
 local function exec(address, name)
     local multiblock = Machine.getMachine(address, name, Machine.types.multiblock)
-    local workAllowed = multiblock:isWorkAllowed()
-    multiblock:setWorkAllowed(not workAllowed)
+    local workAllowed = multiblock.isWorkAllowed()
+    multiblock.setWorkAllowed(not workAllowed)
 end
 
 return exec