diff --git a/os_brick/initiator/windows/fibre_channel.py b/os_brick/initiator/windows/fibre_channel.py
index 7995fde96..3efd5130c 100644
--- a/os_brick/initiator/windows/fibre_channel.py
+++ b/os_brick/initiator/windows/fibre_channel.py
@@ -126,6 +126,6 @@ class WindowsFCConnector(win_conn_base.BaseWindowsConnector):
         return mappings
 
     @utils.trace
-    def disconnect_volume(self, connection_properties,
+    def disconnect_volume(self, connection_properties, device_info=None,
                           force=False, ignore_errors=False):
         pass
diff --git a/os_brick/initiator/windows/iscsi.py b/os_brick/initiator/windows/iscsi.py
index 9a2f9435f..c81291789 100644
--- a/os_brick/initiator/windows/iscsi.py
+++ b/os_brick/initiator/windows/iscsi.py
@@ -134,7 +134,7 @@ class WindowsISCSIConnector(win_conn_base.BaseWindowsConnector,
         return device_info
 
     @utils.trace
-    def disconnect_volume(self, connection_properties,
+    def disconnect_volume(self, connection_properties, device_info=None,
                           force=False, ignore_errors=False):
         # We want to refresh the cached information first.
         self._diskutils.rescan_disks()
diff --git a/os_brick/initiator/windows/smbfs.py b/os_brick/initiator/windows/smbfs.py
index 4465bbe9a..fe026f2f8 100644
--- a/os_brick/initiator/windows/smbfs.py
+++ b/os_brick/initiator/windows/smbfs.py
@@ -49,7 +49,7 @@ class WindowsSMBFSConnector(win_conn_base.BaseWindowsConnector):
         return device_info
 
     @utils.trace
-    def disconnect_volume(self, connection_properties,
+    def disconnect_volume(self, connection_properties, device_info=None,
                           force=False, ignore_errors=False):
         export_path = self._get_export_path(connection_properties)
         self._remotefsclient.unmount(export_path)
diff --git a/os_brick/tests/windows/test_iscsi.py b/os_brick/tests/windows/test_iscsi.py
index 42d6ca28b..67e3e1b82 100644
--- a/os_brick/tests/windows/test_iscsi.py
+++ b/os_brick/tests/windows/test_iscsi.py
@@ -168,7 +168,8 @@ class WindowsISCSIConnectorTestCase(test_base.WindowsConnectorTestBase):
         mock_get_all_targets.return_value = targets
         self._iscsi_utils.get_target_luns.return_value = [mock.sentinel.lun_0]
 
-        self._connector.disconnect_volume(mock.sentinel.conn_props)
+        self._connector.disconnect_volume(mock.sentinel.conn_props,
+                                          mock.sentinel.dev_info)
 
         self._diskutils.rescan_disks.assert_called_once_with()
         mock_get_all_targets.assert_called_once_with(mock.sentinel.conn_props)
diff --git a/os_brick/tests/windows/test_smbfs.py b/os_brick/tests/windows/test_smbfs.py
index 0775f7b49..a11ee23ce 100644
--- a/os_brick/tests/windows/test_smbfs.py
+++ b/os_brick/tests/windows/test_smbfs.py
@@ -46,7 +46,8 @@ class WindowsSMBFSConnectorTestCase(test_base.WindowsConnectorTestBase):
 
     @mock.patch.object(smbfs.WindowsSMBFSConnector, '_get_export_path')
     def test_disconnect_volume(self, mock_get_export_path):
-        self._connector.disconnect_volume(mock.sentinel.conn_props)
+        self._connector.disconnect_volume(mock.sentinel.conn_props,
+                                          mock.sentinel.dev_info)
 
         self._remotefs.unmount.assert_called_once_with(
             mock_get_export_path.return_value)