diff --git a/define_masters.py b/define_masters.py
old mode 100644
new mode 100755
index 11450fb4..d5a38ab7
--- a/define_masters.py
+++ b/define_masters.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import yaml
 import os
 import shutil
diff --git a/master-galera/master.cfg b/master-galera/master.cfg
index 62008c7d..f15753ff 100644
--- a/master-galera/master.cfg
+++ b/master-galera/master.cfg
@@ -245,7 +245,7 @@ c['multiMaster'] = True
 
 c['mq'] = {  # Need to enable multimaster aware mq. Wamp is the only option for now.
     'type' : 'wamp',
-    'router_url': 'ws://localhost:8085/ws',
+    'router_url': 'ws://crossbar:8085/ws',
     'realm': 'realm1',
     # valid are: none, critical, error, warn, info, debug, trace
     'wamp_debug_level' : 'info'
diff --git a/master-libvirt/master.cfg b/master-libvirt/master.cfg
index 55e3a0c6..ac52dd15 100644
--- a/master-libvirt/master.cfg
+++ b/master-libvirt/master.cfg
@@ -287,7 +287,7 @@ c['multiMaster'] = True
 
 c['mq'] = {  # Need to enable multimaster aware mq. Wamp is the only option for now.
     'type' : 'wamp',
-    'router_url': 'ws://localhost:8085/ws',
+    'router_url': 'ws://crossbar:8085/ws',
     'realm': 'realm1',
     # valid are: none, critical, error, warn, info, debug, trace
     'wamp_debug_level' : 'info'
diff --git a/master-nonlatent/master.cfg b/master-nonlatent/master.cfg
index f95488a6..dd2c82c9 100644
--- a/master-nonlatent/master.cfg
+++ b/master-nonlatent/master.cfg
@@ -344,7 +344,7 @@ c['multiMaster'] = True
 
 c['mq'] = {  # Need to enable multimaster aware mq. Wamp is the only option for now.
     'type' : 'wamp',
-    'router_url': 'ws://localhost:8085/ws',
+    'router_url': 'ws://crossbar:8085/ws',
     'realm': 'realm1',
     # valid are: none, critical, error, warn, info, debug, trace
     'wamp_debug_level' : 'info'
diff --git a/master.cfg b/master.cfg
index 68dac7d2..75895872 100644
--- a/master.cfg
+++ b/master.cfg
@@ -262,7 +262,7 @@ c['multiMaster'] = True
 
 c['mq'] = {  # Need to enable multimaster aware mq. Wamp is the only option for now.
     'type' : 'wamp',
-    'router_url': 'ws://localhost:8085/ws',
+    'router_url': 'ws://crossbar:8085/ws',
     'realm': 'realm1',
     # valid are: none, critical, error, warn, info, debug, trace
     'wamp_debug_level' : 'info'