diff --git a/os_faults/drivers/tcpcloud.py b/os_faults/drivers/tcpcloud.py
index c7700c8..e7e0473 100644
--- a/os_faults/drivers/tcpcloud.py
+++ b/os_faults/drivers/tcpcloud.py
@@ -249,7 +249,7 @@ class TCPCloudManagement(cloud_management.CloudManagement):
 
         # get all nodes except salt master (that has cfg* hostname) by default
         self.slave_name_regexp = cloud_management_params.get(
-            'slave_name_regexp', '^(?!cfg)')
+            'slave_name_regexp', '^(?!cfg|mon)')
 
         self.cached_cloud_hosts = list()
         self.fqdn_to_hosts = dict()
diff --git a/os_faults/tests/unit/drivers/test_tcpcloud.py b/os_faults/tests/unit/drivers/test_tcpcloud.py
index b5f1f18..26530c1 100644
--- a/os_faults/tests/unit/drivers/test_tcpcloud.py
+++ b/os_faults/tests/unit/drivers/test_tcpcloud.py
@@ -45,7 +45,7 @@ class TCPCloudManagementTestCase(test.TestCase):
             'slave_iface': 'eth1',
         }
         self.get_nodes_cmd = (
-            "salt -E '^(?!cfg)' network.interfaces --out=yaml")
+            "salt -E '^(?!cfg|mon)' network.interfaces --out=yaml")
 
     @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
     @ddt.data((
@@ -210,7 +210,7 @@ class TcpServiceTestCase(test.TestCase):
             'username': 'root',
         }
         self.get_nodes_cmd = (
-            "salt -E '^(?!cfg)' network.interfaces --out=yaml")
+            "salt -E '^(?!cfg|mon)' network.interfaces --out=yaml")
 
     @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
     @ddt.data(*tcpcloud.TCPCloudManagement.SERVICE_NAME_TO_CLASS.items())