diff --git a/theme/boost/templates/secure.mustache b/theme/boost/templates/secure.mustache
index 75fe1a0e2c6..51ed3f48940 100644
--- a/theme/boost/templates/secure.mustache
+++ b/theme/boost/templates/secure.mustache
@@ -48,7 +48,7 @@
     <div id="page" class="container-fluid">
         {{! Secured full header }}
 
-        <div id="page-header" class="row">
+        <header id="page-header" class="row">
             <div class="col-12 py-3">
                 <div class="page-context-header">
                     <div class="page-header-headings">
@@ -56,7 +56,7 @@
                     </div>
                 </div>
             </div>
-        </div>
+        </header>
 
         <div id="page-content" class="row">
             <div id="region-main-box" class="col-12">
diff --git a/theme/classic/templates/secure.mustache b/theme/classic/templates/secure.mustache
index 9ba4aee7d87..8717eacbb03 100644
--- a/theme/classic/templates/secure.mustache
+++ b/theme/classic/templates/secure.mustache
@@ -59,7 +59,7 @@
     <div id="page" class="container-fluid">
         {{! Secured full header }}
 
-        <div id="page-header" class="row">
+        <header id="page-header" class="row">
             <div class="col-12 py-3">
                 <div class="page-context-header">
                     <div class="page-header-headings">
@@ -67,7 +67,7 @@
                     </div>
                 </div>
             </div>
-        </div>
+        </header>
 
         <div id="page-content" class="row {{#haspreblocks}} blocks-pre {{/haspreblocks}} {{#haspostblocks}} blocks-post {{/haspostblocks}}">
             <div id="region-main-box" class="region-main">