diff --git a/examples/voice/voice-elevenlabs.py b/examples/voice/voice-elevenlabs.py
index 8f61bb665..f3b28e709 100644
--- a/examples/voice/voice-elevenlabs.py
+++ b/examples/voice/voice-elevenlabs.py
@@ -22,6 +22,7 @@ from pipecat.processors.aggregators.llm_response_universal import (
 )
 from pipecat.runner.types import RunnerArguments
 from pipecat.runner.utils import create_transport
+from pipecat.serializers.protobuf import ProtobufFrameSerializer
 from pipecat.services.elevenlabs.stt import ElevenLabsRealtimeSTTService
 from pipecat.services.elevenlabs.tts import ElevenLabsTTSService
 from pipecat.services.openai.llm import OpenAILLMService
@@ -47,6 +48,12 @@ transport_params = {
         audio_in_enabled=True,
         audio_out_enabled=True,
     ),
+    "websocket": lambda: FastAPIWebsocketParams(
+        audio_in_enabled=True,
+        audio_out_enabled=True,
+        add_wav_header=False,
+        serializer=ProtobufFrameSerializer(),
+    ),
 }