diff --git a/models/msg/msg.go b/models/msg/msg.go
index 22bf5f68..aac0ce70 100644
--- a/models/msg/msg.go
+++ b/models/msg/msg.go
@@ -181,5 +181,5 @@ type NatHoleResp struct {
 }
 
 type NatHoleSid struct {
-	Sid string `json；"sid"`
+	Sid string `json:"sid"`
 }