diff --git a/dbus_next/message_bus.py b/dbus_next/message_bus.py
index 0cfe5dd..533d97a 100644
--- a/dbus_next/message_bus.py
+++ b/dbus_next/message_bus.py
@@ -561,15 +561,17 @@ def __call__(self, reply):
                 bus.send(reply)
 
             def __exit__(self, type, value, tb):
-                if type == DBusError:
+                if issubclass(type, DBusError):
                     self(value._as_message(msg))
+                    return True
 
-                if type == Exception:
+                if issubclass(type, Exception):
                     self(
                         Message.new_error(
                             msg, ErrorType.SERVICE_ERROR,
                             f'The service interface raised an error: {value}.\n{traceback.format_tb(tb)}'
                         ))
+                    return True
 
         return SendReply()