From c0d60f020b4fcff39d62f20019c064f792350104 Mon Sep 17 00:00:00 2001
From: qm012 <urobot@qq.com>
Date: Wed, 23 Jun 2021 13:32:00 +0800
Subject: [PATCH] add code Robustness

---
 validator_instance.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/validator_instance.go b/validator_instance.go
index 210433e..e9ac442 100644
--- a/validator_instance.go
+++ b/validator_instance.go
@@ -163,6 +163,8 @@ func (v *Validate) SetErrTagName(name string) {
 	index := v.customTags.Position(defaultErrTagName)
 	if index != -1 {
 		v.customTags[index] = name
+	} else {
+		v.customTags = append(v.customTags, name)
 	}
 	defaultErrTagName = name
 }