diff --git a/etc/tempest.conf.sample b/etc/tempest.conf.sample
index 4418b9d..d7dd5e1 100644
--- a/etc/tempest.conf.sample
+++ b/etc/tempest.conf.sample
@@ -1169,3 +1169,7 @@
 
 # Is the v2 volume API enabled (boolean value)
 #api_v2 = true
+
+# Update bootable status of a volume Not implemented on icehouse
+# (boolean value)
+#bootable = false