diff --git a/libs/partners/anthropic/Makefile b/libs/partners/anthropic/Makefile
index 136c4debc85..43404f5c284 100644
--- a/libs/partners/anthropic/Makefile
+++ b/libs/partners/anthropic/Makefile
@@ -14,7 +14,7 @@ test tests:
 	uv run --group test pytest -vvv --disable-socket --allow-unix-socket $(TEST_FILE)
 
 integration_test integration_tests:
-	uv run --group test --group test_integration pytest -vvv --timeout 30 $(TEST_FILE)
+	uv run --group test --group test_integration pytest -vvv --timeout 30 tests/integration_tests/test_chat_models.py::test_async_stream_twice
 
 test_watch:
 	uv run --group test ptw --snapshot-update --now . -- -vv $(TEST_FILE)
diff --git a/libs/partners/anthropic/tests/integration_tests/test_chat_models.py b/libs/partners/anthropic/tests/integration_tests/test_chat_models.py
index a2563cc480d..5d3669a6acb 100644
--- a/libs/partners/anthropic/tests/integration_tests/test_chat_models.py
+++ b/libs/partners/anthropic/tests/integration_tests/test_chat_models.py
@@ -145,6 +145,15 @@ async def test_stream_usage_override() -> None:
         assert token.usage_metadata is None
 
 
+async def test_async_stream_twice() -> None:
+    model = ChatAnthropic(model_name=MODEL_NAME)
+    async for token in model.astream("hi"):
+        assert isinstance(token, AIMessageChunk)
+
+    async for token in model.astream("hi"):
+        assert isinstance(token, AIMessageChunk)
+
+
 async def test_abatch() -> None:
     """Test streaming tokens from ChatAnthropicMessages."""
     llm = ChatAnthropicMessages(model_name=MODEL_NAME)  # type: ignore[call-arg, call-arg]