diff --git a/os_brick/initiator/connectors/fibre_channel_ppc64.py b/os_brick/initiator/connectors/fibre_channel_ppc64.py
index e0ba4ee36..32537fb2b 100644
--- a/os_brick/initiator/connectors/fibre_channel_ppc64.py
+++ b/os_brick/initiator/connectors/fibre_channel_ppc64.py
@@ -45,13 +45,13 @@ class FibreChannelConnectorPPC64(fibre_channel.FibreChannelConnector):
         self._linuxfc.set_execute(execute)
 
     def _get_host_devices(self, possible_devs, lun):
-        host_devices = []
+        host_devices = set()
         for pci_num, target_wwn in possible_devs:
             host_device = "/dev/disk/by-path/fc-%s-lun-%s" % (
                 target_wwn,
                 self._linuxscsi.process_lun_id(lun))
-            host_devices.append(host_device)
-        return host_devices
+            host_devices.add(host_device)
+        return list(host_devices)
 
     def _get_possible_volume_paths(self, connection_properties, hbas):
         ports = connection_properties['target_wwn']
diff --git a/os_brick/initiator/linuxfc.py b/os_brick/initiator/linuxfc.py
index 2d6252fbc..7d6492800 100644
--- a/os_brick/initiator/linuxfc.py
+++ b/os_brick/initiator/linuxfc.py
@@ -280,8 +280,8 @@ class LinuxFibreChannelPPC64(LinuxFibreChannel):
         if host_device and len(host_device) > 4:
             host_device = host_device[4:]
         path = '/sys/class/fc_transport/target%s:' % host_device
-        cmd = 'grep -l %(wwpn)s %(path)s*/port_name' % {'wwpn': wwpn,
-                                                        'path': path}
+        cmd = 'grep -il %(wwpn)s %(path)s*/port_name' % {'wwpn': wwpn,
+                                                         'path': path}
         try:
             out, _err = self._execute(cmd, shell=True)
             return [line.split('/')[4].split(':')[1:]
diff --git a/os_brick/tests/initiator/connectors/test_fibre_channel_ppc64.py b/os_brick/tests/initiator/connectors/test_fibre_channel_ppc64.py
index 83398cbae..36d279417 100644
--- a/os_brick/tests/initiator/connectors/test_fibre_channel_ppc64.py
+++ b/os_brick/tests/initiator/connectors/test_fibre_channel_ppc64.py
@@ -37,7 +37,14 @@ class FibreChannelConnectorPPC64TestCase(test_connector.ConnectorTestCase):
                          (3, "0x5005076802332ade"), ]
         devices = self.connector._get_host_devices(possible_devs, lun)
         self.assertEqual(2, len(devices))
-        device_path = "/dev/disk/by-path/fc-0x5005076802232ade-lun-2"
-        self.assertEqual(devices[0], device_path)
         device_path = "/dev/disk/by-path/fc-0x5005076802332ade-lun-2"
-        self.assertEqual(devices[1], device_path)
+        self.assertIn(device_path, devices)
+        device_path = "/dev/disk/by-path/fc-0x5005076802232ade-lun-2"
+        self.assertIn(device_path, devices)
+        # test duplicates
+        possible_devs = [(3, "0x5005076802232ade"),
+                         (3, "0x5005076802232ade"), ]
+        devices = self.connector._get_host_devices(possible_devs, lun)
+        self.assertEqual(1, len(devices))
+        device_path = "/dev/disk/by-path/fc-0x5005076802232ade-lun-2"
+        self.assertIn(device_path, devices)