diff --git a/pkg/router/middleware.go b/pkg/router/middleware.go
index f4c5314..9d0a9f1 100644
--- a/pkg/router/middleware.go
+++ b/pkg/router/middleware.go
@@ -23,7 +23,10 @@ func AuthMW(up UserProvider, ap AuthChecker, sid int32) gin.HandlerFunc {
 	log.Debugf("%v %v begin", pkgLogHeader, funcHeader)
 	return func(c *gin.Context) {
 		cookie, err := c.Cookie(tokenCookieName)
-		log.WithField("value", cookie).Debugf("%v %v get session token from cookie", pkgLogHeader, funcHeader)
+		log.WithFields(log.Fields{
+			"value": cookie,
+			"len":   len(cookie),
+		}).Debugf("%v %v get session token from cookie", pkgLogHeader, funcHeader)
 		if err != nil {
 			c.JSON(http.StatusUnauthorized, responses.Unauthorized{Error: err.Error()})
 			c.Abort()