diff --git a/lib/dborm/dborm.go b/lib/dborm/dborm.go
index 58f43567..d6206846 100644
--- a/lib/dborm/dborm.go
+++ b/lib/dborm/dborm.go
@@ -1740,7 +1740,7 @@ type TraceData struct {
 	IfType    int    `json:"ifType" xorm:"if_type"`
 	MsgType   int    `json:"msgType" xorm:"msg_type"`
 	MsgDirect int    `json:"msgDirect" xorm:"msg_direct"`
-	Timestamp int64  `json:"timestamp" xorm:"timestamp"`
+	Timestamp string `json:"timestamp" xorm:"timestamp"`
 	RawMsg    []byte `json:"rawMsg" xorm:"raw_msg"`
 	DecMsg    string `json:"decMsg" xorm:"dec_msg"`
 }