diff --git a/tractor/__init__.py b/tractor/__init__.py
index 5ed843f..dda1400 100644
--- a/tractor/__init__.py
+++ b/tractor/__init__.py
@@ -22,6 +22,7 @@ from ._exceptions import RemoteActorError, ModuleNotExposed
 from ._debug import breakpoint, post_mortem
 from . import msg
 from . import _spawn
+from . import to_asyncio
 
 
 __all__ = [
@@ -39,6 +40,7 @@ __all__ = [
     'RemoteActorError',
     'ModuleNotExposed',
     'msg'
+    'to_asyncio'
 ]
 
 
diff --git a/tractor/_trionics.py b/tractor/_trionics.py
index 203a9dc..e0610bc 100644
--- a/tractor/_trionics.py
+++ b/tractor/_trionics.py
@@ -56,6 +56,7 @@ class ActorNursery:
         rpc_module_paths: List[str] = None,
         loglevel: str = None,  # set log level per subactor
         nursery: trio.Nursery = None,
+        infect_asyncio: bool = False,
     ) -> Portal:
         loglevel = loglevel or self._actor.loglevel or get_loglevel()
 
@@ -89,6 +90,7 @@ class ActorNursery:
                 bind_addr,
                 parent_addr,
                 _rtv,  # run time vars
+                infect_asyncio=infect_asyncio,
             )
         )
 
@@ -101,6 +103,7 @@ class ActorNursery:
         rpc_module_paths: Optional[List[str]] = None,
         statespace: Dict[str, Any] = None,
         loglevel: str = None,  # set log level per subactor
+        infect_asyncio: bool = False,
         **kwargs,  # explicit args to ``fn``
     ) -> Portal:
         """Spawn a new actor, run a lone task, then terminate the actor and
@@ -119,6 +122,7 @@ class ActorNursery:
             loglevel=loglevel,
             # use the run_in_actor nursery
             nursery=self._ria_nursery,
+            infect_asyncio=infect_asyncio,
         )
         # this marks the actor to be cancelled after its portal result
         # is retreived, see logic in `open_nursery()` below.