Fix compile error on one of the verification builders

Change-Id: Ideff20fbad345d7d809b6a340198d4bedf85abdc
Reviewed-on: http://review.couchbase.org/34381
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>