diff --git a/zeroconf/aio.py b/zeroconf/aio.py
index 446f6cf0..974a2cb9 100644
--- a/zeroconf/aio.py
+++ b/zeroconf/aio.py
@@ -33,6 +33,14 @@
 from .const import _BROWSER_TIME, _CHECK_TIME, _LISTENER_TIME, _MDNS_PORT, _REGISTER_TIME, _UNREGISTER_TIME
 
 
+__all__ = [
+    "AsyncZeroconf",
+    "AsyncServiceInfo",
+    "AsyncServiceBrowser",
+    "AsyncServiceListener",
+]
+
+
 class AsyncNotifyListener(NotifyListener):
     """A NotifyListener that async code can use to wait for events."""