diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
index 401d42eb2f..39f1e5f2a8 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
@@ -354,7 +354,7 @@ legend:hover {
                                                         [% IF ( ERROR_dateofbirth ) %]
                                                             <span class="required">(Error)</span>
                                                         [% END %]
-                                                        <div class="hint">[% INCLUDE 'date-format.inc' %]</div>
+                                                        <div id="dateofbirth_hint" class="hint">[% INCLUDE 'date-format.inc' %]</div>
                                                     </li>
                                                 [% END # /UNLESS nodateofbirth %]
                                                 [% UNLESS noinitials %]
diff --git a/koha-tmpl/intranet-tmpl/prog/js/members.js b/koha-tmpl/intranet-tmpl/prog/js/members.js
index 73c15021cf..a9e6a870ae 100644
--- a/koha-tmpl/intranet-tmpl/prog/js/members.js
+++ b/koha-tmpl/intranet-tmpl/prog/js/members.js
@@ -148,7 +148,7 @@ function CalculateAge(dateofbirth) {
 }
 
 function write_age() {
-    var hint = $("#dateofbirth").siblings(".hint").first();
+    var hint = $("#dateofbirth_hint");
     hint.html(dateformat);
 
     var age = CalculateAge(document.form.dateofbirth.value);