http instead of https shown in sitemap URL

Hi.

As we have an SSL certificate, our domain URL is prefixed "https:" however the sitemap URL in SmartCrawl settings is showing as prefixed with just "http:". It still loads to Google & Bing ok, so no functionality issue, just a niggle I suppose that it's not quite right?

NB. Domain with "https:" is correctly set in our "wp-config" file.

Look forward to hearing your comments.