diff --git a/website/themes/beastie/static/opensearch/markmail.xml b/website/themes/beastie/static/opensearch/markmail.xml
index fd4e663f22..d83c8542e7 100644
--- a/website/themes/beastie/static/opensearch/markmail.xml
+++ b/website/themes/beastie/static/opensearch/markmail.xml
@@ -1,8 +1,8 @@
 <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/" xmlns:moz="http://www.mozilla.org/2006/browser/search/">
   <ShortName>MarkMail FreeBSD</ShortName>
   <Description>FreeBSD Mailing List Search by MarkMail</Description>
   <InputEncoding>UTF-8</InputEncoding>
   <Image width="16" height="16" type="image/x-icon">https://www.freebsd.org/favicon.ico</Image>
-  <Url type="text/html" method="get" template="http://freebsd.markmail.org/search/?q={searchTerms}&amp;sourceid=opensearch"/>
-  <moz:SearchForm>http://freebsd.markmail.org/search/</moz:SearchForm>
+  <Url type="text/html" method="get" template="https://freebsd.markmail.org/search/?q={searchTerms}&amp;sourceid=opensearch"/>
+  <moz:SearchForm>https://freebsd.markmail.org/search/</moz:SearchForm>
 </OpenSearchDescription>