diff --git a/common/url.go b/common/url.go
index b3168cae3580047dda2e65806dcf8a9fa528725b..60a78474c316ac64e1100139ba4d04c98c55abc4 100644
--- a/common/url.go
+++ b/common/url.go
@@ -422,8 +422,8 @@ func (c *URL) SetParam(key string, value string) {
 // RangeParams will iterate the params
 func (c *URL) RangeParams(f func(key, value string) bool) {
 	var (
-		flag bool
-		key string
+		flag  bool
+		key   string
 		value string
 	)