diff --git a/doc/utils/sphinx-config/_themes/lammps_theme/.gitignore b/doc/utils/sphinx-config/_themes/lammps_theme/.gitignore
new file mode 100644
index 0000000000..7e0caf8f59
--- /dev/null
+++ b/doc/utils/sphinx-config/_themes/lammps_theme/.gitignore
@@ -0,0 +1 @@
+!*.html
diff --git a/doc/utils/sphinx-config/_themes/lammps_theme/search.html b/doc/utils/sphinx-config/_themes/lammps_theme/search.html
index 285d27e0d7..2ae6147eb6 100644
--- a/doc/utils/sphinx-config/_themes/lammps_theme/search.html
+++ b/doc/utils/sphinx-config/_themes/lammps_theme/search.html
@@ -4,17 +4,8 @@
 {% endblock %}
 {% block body %}
   <div id="search-results">
-<script>
-  (function() {
-    var cx = '012685039201307511604:um7if1hinba';
-    var gcse = document.createElement('script');
-    gcse.type = 'text/javascript';
-    gcse.async = true;
-    gcse.src = 'https://cse.google.com/cse.js?cx=' + cx;
-    var s = document.getElementsByTagName('script')[0];
-    s.parentNode.insertBefore(gcse, s);
-  })();
-</script>
-<gcse:searchresults-only></gcse:searchresults-only>
+    <script async src="https://cse.google.com/cse.js?cx=000956471495417073164:5ggs_m6ymw0">
+    </script>
+    <div class="gcse-search"></div>
   </div>
 {% endblock %}