diff --git a/mod/forum/templates/big_search_form.mustache b/mod/forum/templates/big_search_form.mustache
index 838b8c2adfd..9367d019ec6 100644
--- a/mod/forum/templates/big_search_form.mustache
+++ b/mod/forum/templates/big_search_form.mustache
@@ -94,7 +94,7 @@
                 </td>
                 <td class="c1 text-nowrap d-flex flex-wrap align-items-center">
                     <div class="fdate_time_selector d-flex flex-wrap align-items-center">
-                        <input type="checkbox" name="timefromrestrict" value="1" {{#datefromchecked}}checked{{/datefromchecked}}>
+                        <input type="checkbox" id="timefromrestrict" name="timefromrestrict" value="1" {{#datefromchecked}}checked{{/datefromchecked}}>
                         {{{datefromfields}}}
                     </div>
                     <input type="hidden" name="hfromday" value="0">
@@ -110,7 +110,7 @@
                 </td>
                 <td class="c1 text-nowrap d-flex flex-wrap align-items-center">
                     <div class="fdate_time_selector d-flex flex-wrap align-items-center">
-                        <input type="checkbox" name="timetorestrict" value="1" {{#datetochecked}}checked{{/datetochecked}}>
+                        <input type="checkbox" id="timetorestrict" name="timetorestrict" value="1" {{#datetochecked}}checked{{/datetochecked}}>
                         {{{datetofields}}}
                     </div>
                     <input type="hidden" name="htoday" value="0">