diff --git a/transport/http/codec.go b/transport/http/codec.go
index 176e599af..be1a9a75b 100644
--- a/transport/http/codec.go
+++ b/transport/http/codec.go
@@ -24,6 +24,9 @@ type Request = http.Request
 // ResponseWriter type net/http.
 type ResponseWriter = http.ResponseWriter
 
+// Flusher type net/http
+type Flusher = http.Flusher
+
 // DecodeRequestFunc is decode request func.
 type DecodeRequestFunc func(*http.Request, interface{}) error