diff --git a/engine/standard/url.go b/engine/standard/url.go
index 06e0c6c5..a0a450ff 100644
--- a/engine/standard/url.go
+++ b/engine/standard/url.go
@@ -35,4 +35,5 @@ func (u *URL) QueryString() string {
 
 func (u *URL) reset(url *url.URL) {
 	u.URL = url
+	u.query = nil
 }