diff --git a/http3/client.go b/http3/client.go
index 56b766b92..4979a9427 100644
--- a/http3/client.go
+++ b/http3/client.go
@@ -2,7 +2,6 @@ package http3
 
 import (
 	"bytes"
-	"context"
 	"crypto/tls"
 	"errors"
 	"fmt"
@@ -150,7 +149,7 @@ func (c *client) RoundTrip(req *http.Request) (*http.Response, error) {
 		return nil, c.handshakeErr
 	}
 
-	str, err := c.session.OpenStreamSync(context.Background())
+	str, err := c.session.OpenStreamSync(req.Context())
 	if err != nil {
 		return nil, err
 	}
diff --git a/http3/client_test.go b/http3/client_test.go
index 1ce69aee8..ddb3ddb28 100644
--- a/http3/client_test.go
+++ b/http3/client_test.go
@@ -301,7 +301,7 @@ var _ = Describe("Client", func() {
 			It("cancels a request while the request is still in flight", func() {
 				ctx, cancel := context.WithCancel(context.Background())
 				req := request.WithContext(ctx)
-				sess.EXPECT().OpenStreamSync(context.Background()).Return(str, nil)
+				sess.EXPECT().OpenStreamSync(ctx).Return(str, nil)
 				buf := &bytes.Buffer{}
 				str.EXPECT().Close().MaxTimes(1)
 
@@ -333,7 +333,7 @@ var _ = Describe("Client", func() {
 
 				ctx, cancel := context.WithCancel(context.Background())
 				req := request.WithContext(ctx)
-				sess.EXPECT().OpenStreamSync(context.Background()).Return(str, nil)
+				sess.EXPECT().OpenStreamSync(ctx).Return(str, nil)
 				buf := &bytes.Buffer{}
 				str.EXPECT().Close().MaxTimes(1)