diff --git a/constant/metadata.go b/constant/metadata.go
index d57c21b6..f30426c1 100644
--- a/constant/metadata.go
+++ b/constant/metadata.go
@@ -135,7 +135,7 @@ type Metadata struct {
 	SpecialRules string     `json:"specialRules"`
 	RemoteDst    string     `json:"remoteDestination"`
 	// Only domain rule
-	SniffHost 	 string
+	SniffHost string
 }
 
 func (m *Metadata) RemoteAddress() string {
@@ -165,7 +165,7 @@ func (m *Metadata) SourceDetail() string {
 
 func (m *Metadata) AddrType() int {
 	switch true {
-	case m.Host != "" || !m.DstIP.IsValid():
+	case m.Host != "" || m.SniffHost != "" || !m.DstIP.IsValid():
 		return socks5.AtypDomainName
 	case m.DstIP.Is4():
 		return socks5.AtypIPv4