diff --git a/website/content/guide/middleware.md b/website/content/guide/middleware.md
index 4cb8b450..64fe104a 100644
--- a/website/content/guide/middleware.md
+++ b/website/content/guide/middleware.md
@@ -33,8 +33,8 @@ BasicAuth middleware provides an HTTP basic authentication.
 *Example*
 
 ```go
-e.Group("/admin")
-e.Use(mw.BasicAuth(func(usr, pwd string) bool {
+g := e.Group("/admin")
+g.Use(mw.BasicAuth(func(usr, pwd string) bool {
 	if usr == "joe" && pwd == "secret" {
 		return true
 	}