diff --git a/tractor/_spawn.py b/tractor/_spawn.py
index fa0dac1..29c4032 100644
--- a/tractor/_spawn.py
+++ b/tractor/_spawn.py
@@ -331,6 +331,7 @@ async def new_proc(
             bind_addr=bind_addr,
             parent_addr=parent_addr,
             _runtime_vars=_runtime_vars,
+            infect_asyncio=infect_asyncio,
             task_status=task_status,
         )
 
@@ -346,6 +347,7 @@ async def mp_new_proc(
     parent_addr: Tuple[str, int],
     _runtime_vars: Dict[str, Any],  # serialized and sent to _child
     *,
+    infect_asyncio: bool = False,
     task_status: TaskStatus[Portal] = trio.TASK_STATUS_IGNORED
 
 ) -> None: