diff --git a/website/themes/beastie/static/opensearch/markmail.xml b/website/themes/beastie/static/opensearch/markmail.xml
index f2b99d73c1..a788f8f238 100644
--- a/website/themes/beastie/static/opensearch/markmail.xml
+++ b/website/themes/beastie/static/opensearch/markmail.xml
@@ -1,8 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
 <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/" xmlns:moz="http://www.mozilla.org/2006/browser/search/">
   <ShortName>MarkMail FBSD</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="https://freebsd.markmail.org/search/?q={searchTerms}&amp;sourceid=opensearch"/>
   <moz:SearchForm>https://freebsd.markmail.org/search/</moz:SearchForm>
 </OpenSearchDescription>
diff --git a/website/themes/beastie/static/opensearch/message-id.xml b/website/themes/beastie/static/opensearch/message-id.xml
index 1a33a43092..caa19ea665 100644
--- a/website/themes/beastie/static/opensearch/message-id.xml
+++ b/website/themes/beastie/static/opensearch/message-id.xml
@@ -1,8 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
 <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/" xmlns:moz="http://www.mozilla.org/2006/browser/search/">
   <ShortName>FreeBSD M-ID</ShortName>
   <Description>FreeBSD Mail Message-ID</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="https://www.freebsd.org/cgi/mid.cgi?db=mid&amp;id={searchTerms}&amp;sourceid=opensearch"/>
   <moz:SearchForm>https://www.freebsd.org/cgi/mid.cgi</moz:SearchForm>
 </OpenSearchDescription>