diff --git a/main.go b/main.go
index 81c773f..3817cfc 100644
--- a/main.go
+++ b/main.go
@@ -94,16 +94,28 @@ func parseOutStates(b []byte) []config.State {
 
 func _main() error {
 	for {
-		if err := config.Refresh(); err != nil {
-			return err
-		}
-		if err := once(); err != nil {
-			return err
+		err := _mainOne()
+		if err != nil {
+			log.Println(err)
 		}
 		if config.Get().Once {
-			break
+			return err
 		}
-		time.Sleep(config.Get().Interval.Get())
+		if err != nil {
+			time.Sleep(config.Get().Interval.Error.Get())
+		} else {
+			time.Sleep(config.Get().Interval.OK.Get())
+		}
+	}
+	return nil
+}
+
+func _mainOne() error {
+	if err := config.Refresh(); err != nil {
+		return err
+	}
+	if err := once(); err != nil {
+		return err
 	}
 	return nil
 }