Fixup warning causing build break

Change-Id: I740ed3aa340b8e294c7d9986e0fc8db9afb2083f
Reviewed-on: http://review.couchbase.org/28089
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>