diff --git a/searx/static/themes/oscar/css/pointhi.min.css.map b/searx/static/themes/oscar/css/pointhi.min.css.map
index 52c6c2251..806766060 100644
Binary files a/searx/static/themes/oscar/css/pointhi.min.css.map and b/searx/static/themes/oscar/css/pointhi.min.css.map differ
diff --git a/searx/static/themes/simple/js/searx.js b/searx/static/themes/simple/js/searx.js
index 5982a06cf..320c5f882 100644
--- a/searx/static/themes/simple/js/searx.js
+++ b/searx/static/themes/simple/js/searx.js
@@ -782,7 +782,7 @@ searx.ready(function() {
     }
 
     // vanilla js version of search_on_category_select.js
-    if (qinput !== null && searx.search_on_category_select) {
+    if (qinput !== null && d.querySelector('.help') != null && searx.search_on_category_select) {
       d.querySelector('.help').className='invisible';
 
       searx.on('#categories input', 'change', function() {
diff --git a/searx/static/themes/simple/js/searx.min.js b/searx/static/themes/simple/js/searx.min.js
index 2b0cd9a4d..845a6a45d 100644
Binary files a/searx/static/themes/simple/js/searx.min.js and b/searx/static/themes/simple/js/searx.min.js differ
diff --git a/searx/static/themes/simple/js/searx.min.js.map b/searx/static/themes/simple/js/searx.min.js.map
index 1763fd2e5..834aab0fc 100644
Binary files a/searx/static/themes/simple/js/searx.min.js.map and b/searx/static/themes/simple/js/searx.min.js.map differ