diff --git a/tests/manager_context.py b/tests/manager_context.py
index b925fad6..d86a1c4a 100644
--- a/tests/manager_context.py
+++ b/tests/manager_context.py
@@ -118,3 +118,4 @@ async def __aexit__(self, exc_type, exc_val, exc_tb):
 
         self.manager.transport_dispatcher.job_finished(1)
         self.manager.close_dispatcher()
+        self.manager._close()