diff --git a/context.go b/context.go
index c1442010..798bcc24 100644
--- a/context.go
+++ b/context.go
@@ -519,7 +519,7 @@ func (c *context) NoContent(code int) error {
 }
 
 func (c *context) Redirect(code int, url string) error {
-	if code < http.StatusMultipleChoices || code > http.StatusTemporaryRedirect {
+	if code < 300 || code > 308 {
 		return ErrInvalidRedirectCode
 	}
 	c.response.Header().Set(HeaderLocation, url)
diff --git a/website/content/middleware/trailing-slash.md b/website/content/middleware/trailing-slash.md
index c504f3c5..96912e7c 100644
--- a/website/content/middleware/trailing-slash.md
+++ b/website/content/middleware/trailing-slash.md
@@ -39,7 +39,7 @@ e.Use(middleware.AddTrailingSlashWithConfig(middleware.TrailingSlashConfig{
 }))
 ```
 
-Example above will add a trailing slash to the request URI and redirect with `308 - StatusMovedPermanently`.
+Example above will add a trailing slash to the request URI and redirect with `301 - StatusMovedPermanently`.
 
 ## Configuration