diff --git a/tests/conftest.py b/tests/conftest.py
index 09ca3797..46a3ea69 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -165,10 +165,12 @@ def daemon(
         "import tractor; "
         "tractor.run_daemon([], "
         "registry_addrs={reg_addrs}, "
+        "enable_transports={enable_tpts}, "
         "debug_mode={debug_mode}, "
         "loglevel={ll})"
     ).format(
         reg_addrs=str([reg_addr]),
+        enable_tpts=str([tpt_proto]),
         ll="'{}'".format(loglevel) if loglevel else None,
         debug_mode=debug_mode,
     )
diff --git a/tractor/_testing/pytest.py b/tractor/_testing/pytest.py
index 1a2f63ab..65a34da1 100644
--- a/tractor/_testing/pytest.py
+++ b/tractor/_testing/pytest.py
@@ -232,6 +232,9 @@ def tpt_proto(
     from tractor import _state
     if _state._def_tpt_proto != proto_key:
         _state._def_tpt_proto = proto_key
+        _state._runtime_vars['_enable_tpts'] = [
+            proto_key,
+        ]
 
     yield proto_key