diff --git a/artiq/test/coredevice/test_embedding.py b/artiq/test/coredevice/test_embedding.py
index fa1102158..26277a7c9 100644
--- a/artiq/test/coredevice/test_embedding.py
+++ b/artiq/test/coredevice/test_embedding.py
@@ -269,7 +269,7 @@ class _Async(EnvExperiment):
 
 class AsyncTest(ExperimentCase):
     def test_args(self):
-        exp = self.create(_RPCTypes)
+        exp = self.create(_Async)
         exp.run()