diff --git a/engine/simple_serializer.go b/engine/simple_serializer.go
index 9ecc4ecc0..5fa8a9db8 100644
--- a/engine/simple_serializer.go
+++ b/engine/simple_serializer.go
@@ -582,7 +582,7 @@ func (mb *MinuteBucket) Store() (result string, err error) {
 func (mb *MinuteBucket) Restore(input string) error {
 	elements := strings.Split(strings.TrimSpace(input), ";")
 	if len(elements) > 0 && len(elements) != 5 {
-		return notEnoughElements("MinuteBucket!!", input)
+		return notEnoughElements(fmt.Sprintf("MinuteBucket: %v %v", elements, len(elements)), input)
 	}
 	mb.Seconds, _ = strconv.ParseFloat(elements[0], 64)
 	mb.Weight, _ = strconv.ParseFloat(elements[1], 64)