diff --git a/tests/test_litellm/llms/openai/realtime/test_openai_realtime_handler.py b/tests/test_litellm/llms/openai/realtime/test_openai_realtime_handler.py
index 87923a8093b..a8382311b87 100644
--- a/tests/test_litellm/llms/openai/realtime/test_openai_realtime_handler.py
+++ b/tests/test_litellm/llms/openai/realtime/test_openai_realtime_handler.py
@@ -195,10 +195,10 @@ async def test_async_realtime_url_contains_model():
         
         # Verify proper headers were set
         called_kwargs = mock_ws_connect.call_args[1]
-        assert "additional_headers" in called_kwargs
-        additional_headers = called_kwargs["additional_headers"]
-        assert additional_headers["Authorization"] == f"Bearer {api_key}"
-        assert additional_headers["OpenAI-Beta"] == "realtime=v1"
+        assert "extra_headers" in called_kwargs
+        extra_headers = called_kwargs["extra_headers"]
+        assert extra_headers["Authorization"] == f"Bearer {api_key}"
+        assert extra_headers["OpenAI-Beta"] == "realtime=v1"
         assert called_kwargs["ssl"] is shared_context
         
         mock_realtime_streaming.assert_called_once()