diff --git a/opencontrail/control/single4_0.yml b/opencontrail/control/single4_0.yml
index 779d8d0..2fefc09 100644
--- a/opencontrail/control/single4_0.yml
+++ b/opencontrail/control/single4_0.yml
@@ -15,6 +15,7 @@
     opencontrail_controller_container_name: opencontrail_controller_1
     opencontrail_analytics_container_name: opencontrail_analytics_1
     opencontrail_analyticsdb_container_name: opencontrail_analyticsdb_1
+    opencontrail_message_queue_password: guest
 # Temprorary fix for MOS9 packages to pin old version of kafka
   linux:
     system:
@@ -93,6 +94,7 @@
         members:
         - host: ${_param:single_address}
       message_queue:
+        password: ${_param:opencontrail_message_queue_password}
         members:
         - host: ${_param:openstack_control_address}
       identity:
@@ -104,6 +106,7 @@
         members:
         - host: ${_param:single_address}
       message_queue:
+        password: ${_param:opencontrail_message_queue_password}
         members:
         - host: ${_param:openstack_control_address}
       database:
@@ -142,6 +145,7 @@
         - host: ${_param:single_address}
       message_queue:
         host: ${_param:openstack_control_address}
+        password: ${_param:opencontrail_message_queue_password}
         members:
         - host: ${_param:openstack_control_address}
       config: