diff --git a/src/net/http/filetransport.go b/src/net/http/filetransport.go
index b08bae63487..8f2cbb2517f 100644
--- a/src/net/http/filetransport.go
+++ b/src/net/http/filetransport.go
@@ -57,7 +57,7 @@ func (t fileTransport) RoundTrip(req *Request) (resp *Response, err error) {
 	// sends our *Response on, once the *Response itself has been
 	// populated (even if the body itself is still being
 	// written to the res.Body, a pipe)
-	rw, resc := newPopulateResponseWriter()
+	rw, resc := newPopulateResponseWriter(req)
 	go func() {
 		t.fh.ServeHTTP(rw, req)
 		rw.finish()
@@ -65,7 +65,7 @@ func (t fileTransport) RoundTrip(req *Request) (resp *Response, err error) {
 	return <-resc, nil
 }
 
-func newPopulateResponseWriter() (*populateResponse, <-chan *Response) {
+func newPopulateResponseWriter(req *Request) (*populateResponse, <-chan *Response) {
 	pr, pw := io.Pipe()
 	rw := &populateResponse{
 		ch: make(chan *Response),
@@ -76,6 +76,7 @@ func newPopulateResponseWriter() (*populateResponse, <-chan *Response) {
 			Header:     make(Header),
 			Close:      true,
 			Body:       pr,
+			Request:    req,
 		},
 	}
 	return rw, rw.ch
diff --git a/src/net/http/filetransport_test.go b/src/net/http/filetransport_test.go
index b3e3301e107..a255c4b4ad2 100644
--- a/src/net/http/filetransport_test.go
+++ b/src/net/http/filetransport_test.go
@@ -53,6 +53,9 @@ func TestFileTransport(t *testing.T) {
 		if string(slurp) != "Bar" {
 			t.Errorf("for %s, got content %q, want %q", urlstr, string(slurp), "Bar")
 		}
+		if got := res.Request.URL.String(); got != urlstr {
+			t.Errorf("for %s, Response.Request.URL = %s, want = %s", urlstr, got, urlstr)
+		}
 	}
 
 	const badURL = "file://../no-exist.txt"