diff --git a/starlette/testclient.py b/starlette/testclient.py
index 69a930bad..020f0a0d5 100644
--- a/starlette/testclient.py
+++ b/starlette/testclient.py
@@ -17,6 +17,7 @@
 import anyio
 import anyio.abc
 import anyio.from_thread
+from anyio.abc import ObjectReceiveStream, ObjectSendStream
 from anyio.streams.stapled import StapledObjectStream
 
 from starlette._utils import collapse_excgroups, is_async_callable