diff --git a/tempest/config.py b/tempest/config.py
index b8a91b7..e23cc99 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -392,9 +392,9 @@
                      "migration"),
     cfg.BoolOpt('block_migrate_cinder_iscsi',
                 default=False,
-                help="Does the test environment block migration support "
-                "cinder iSCSI volumes. Note, libvirt doesn't support this, "
-                "see https://bugs.launchpad.net/nova/+bug/1398999"),
+                help="Does the test environment support block migration with "
+                "Cinder iSCSI volumes. Note: libvirt >= 1.2.17 is required "
+                "to support this if using the libvirt compute driver."),
     cfg.BoolOpt('vnc_console',
                 default=False,
                 help='Enable VNC console. This configuration value should '