diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/patron-attr-types.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/patron-attr-types.tt
index 326d8edc86..6c87a2fe0c 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/patron-attr-types.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/patron-attr-types.tt
@@ -97,7 +97,7 @@
             [% attribute_type.code |html %]
           [% ELSE %]
               <label for="code" class="required">Patron attribute type code: </label>
-              <input type="text" id="code" name="code" required="required" class="required focus" size="10" maxlength="10" />
+              <input type="text" id="code" name="code" required="required" class="required focus" maxlength="64" />
               <span class="required">Required</span>
           [% END %]
        </li>