diff --git a/engine/pipeline.py b/engine/pipeline.py
index 1dcb6b7..30a2534 100644
--- a/engine/pipeline.py
+++ b/engine/pipeline.py
@@ -135,9 +135,9 @@ async def run_pipeline_with_serializer(
             user_aggregator,
             llm,
             ProductTextStreamProcessor(),
+            assistant_aggregator,
             tts,
             transport.output(),
-            assistant_aggregator,
         ]
     )