diff --git a/examples/actor_spawning_and_causality.py b/examples/actor_spawning_and_causality.py
index 0d577c0..ca793f1 100644
--- a/examples/actor_spawning_and_causality.py
+++ b/examples/actor_spawning_and_causality.py
@@ -1,7 +1,7 @@
 import tractor
 
 
-def cellar_door():
+async def cellar_door():
     assert not tractor.is_root_process()
     return "Dang that's beautiful"
 
diff --git a/examples/actor_spawning_and_causality_with_daemon.py b/examples/actor_spawning_and_causality_with_daemon.py
index 1216af0..1ab0f88 100644
--- a/examples/actor_spawning_and_causality_with_daemon.py
+++ b/examples/actor_spawning_and_causality_with_daemon.py
@@ -1,7 +1,7 @@
 import tractor
 
 
-def movie_theatre_question():
+async def movie_theatre_question():
     """A question asked in a dark theatre, in a tangent
     (errr, I mean different) process.
     """
diff --git a/examples/parallelism/concurrent_actors_primes.py b/examples/parallelism/concurrent_actors_primes.py
index 3ff8dab..a2aec90 100644
--- a/examples/parallelism/concurrent_actors_primes.py
+++ b/examples/parallelism/concurrent_actors_primes.py
@@ -29,7 +29,7 @@ PRIMES = [
 ]
 
 
-def is_prime(n):
+async def is_prime(n):
     if n < 2:
         return False
     if n == 2:
diff --git a/tests/test_cancellation.py b/tests/test_cancellation.py
index 458607d..42aec35 100644
--- a/tests/test_cancellation.py
+++ b/tests/test_cancellation.py
@@ -120,7 +120,7 @@ def test_multierror_fast_nursery(arb_addr, start_method, num_subactors, delay):
         assert exc.type == AssertionError
 
 
-def do_nothing():
+async def do_nothing():
     pass
 
 
diff --git a/tests/test_spawning.py b/tests/test_spawning.py
index a8da2c1..fb1e1be 100644
--- a/tests/test_spawning.py
+++ b/tests/test_spawning.py
@@ -51,7 +51,7 @@ def test_local_arbiter_subactor_global_state(arb_addr):
     assert result == 10
 
 
-def movie_theatre_question():
+async def movie_theatre_question():
     """A question asked in a dark theatre, in a tangent
     (errr, I mean different) process.
     """
@@ -80,7 +80,7 @@ async def test_movie_theatre_convo(start_method):
         await portal.cancel_actor()
 
 
-def cellar_door():
+async def cellar_door():
     return "Dang that's beautiful"