diff --git a/middleware/prome/prome.go b/middleware/prome/prome.go
index 04ab8e3..d94ee2d 100644
--- a/middleware/prome/prome.go
+++ b/middleware/prome/prome.go
@@ -3,6 +3,7 @@ package prome
 import (
 	"context"
 	"fmt"
+	"git.diulo.com/mogfee/kit/errors"
 	"git.diulo.com/mogfee/kit/middleware"
 	"git.diulo.com/mogfee/kit/transport"
 	"github.com/prometheus/client_golang/prometheus"
@@ -65,7 +66,7 @@ func Prometheus() middleware.Middleware {
 			code := "500"
 			if err != nil {
 				switch aerr := err.(type) {
-				case *errorx.Error:
+				case *errors.Error:
 					code = fmt.Sprintf("%d", aerr.Code)
 				default:
 					code = "500"