diff --git a/main.go b/main.go
index 6e9c4d4..44a0593 100644
--- a/main.go
+++ b/main.go
@@ -145,7 +145,7 @@ func CpuTempetureScraper(processorCount int, notifier <-chan TempetureChange, er
 		controller.SetSetPoint(SetPoint)
 		controller.SetSampleTime(SampleTime)
 		controller.SetWindupGuard(WindupGuard)
-		controllers := append(controllers, controller)
+		controllers = append(controllers, controller)
 	}
 
 	for {