diff --git a/villas/controller/commands/monitor.py b/villas/controller/commands/monitor.py
index 9833697..fdb6782 100644
--- a/villas/controller/commands/monitor.py
+++ b/villas/controller/commands/monitor.py
@@ -32,7 +32,8 @@ def run(connection, args):
 
         queue = kombu.Queue(exchange=exchange,
                             binding_arguments=headers,
-                            durable=False)
+                            durable=False,
+                            exclusive=True)
 
         consumer = kombu.Consumer(connection,
                                   queues=queue,
diff --git a/villas/controller/commands/simulator.py b/villas/controller/commands/simulator.py
index f83b3d8..ec1bf71 100644
--- a/villas/controller/commands/simulator.py
+++ b/villas/controller/commands/simulator.py
@@ -104,7 +104,8 @@ def run(connection, args):
         consumer = kombu.Consumer(channel,
                                   queues=kombu.Queue(
                                       exchange=exchange,
-                                      durable=False
+                                      durable=False,
+                                      exclusive=True
                                   ),
                                   on_message=SimulatorPingCommand.on_message)