diff --git a/models/label.go b/models/label.go
index b9d3ee5965d1175027bac950ef3b4928a939a3ab..b4c7f0236b81576098443ce8ad100b6a80c6d868 100644
--- a/models/label.go
+++ b/models/label.go
@@ -22,7 +22,7 @@ type LabelRequest struct {
 }
 
 var (
-	stageReg = regexp.MustCompile(`KB\[stage\]\[(\d)\]\[(.*)\]`)
+	stageReg = regexp.MustCompile(`KB\[stage\]\[(\d+)\]\[(.*)\]`)
 )
 
 // ParseLabelToStage transform label to stage