diff --git a/cirq-google/cirq_google/engine/stream_manager.py b/cirq-google/cirq_google/engine/stream_manager.py
index 7c3539b274c..174af64f8cf 100644
--- a/cirq-google/cirq_google/engine/stream_manager.py
+++ b/cirq-google/cirq_google/engine/stream_manager.py
@@ -205,9 +205,9 @@ async def _manage_stream(
         """
         while True:
             try:
-                # The default gRPC client timeout is used.
                 response_iterable = await self._grpc_client.quantum_run_stream(
-                    _request_iterator(request_queue)
+                    _request_iterator(request_queue),
+                    timeout=None,  # Persist the stream indefinitely.
                 )
                 async for response in response_iterable:
                     self._response_demux.publish(response)