diff --git a/app/views/resources/resource/_add_edit_form.php b/app/views/resources/resource/_add_edit_form.php
index 688d98a4d108bb3a5cb155461eefce882d2833e1..1eec6151b4b0b04a674f875423d3bce75a8773d2 100644
--- a/app/views/resources/resource/_add_edit_form.php
+++ b/app/views/resources/resource/_add_edit_form.php
@@ -28,7 +28,7 @@
                 <label>
                     <?= _('Sortierposition') ?>
                     <input type="text" name="sort_position"
-                           value="<?= isset($sort_position) ? htmlReady($sort_position) : null ?>">
+                           value="<?= !empty($sort_position) ? htmlReady($sort_position) : '' ?>">
                 </label>
             <? endif ?>
         </fieldset>