diff --git a/htdocs/categories/edit.php b/htdocs/categories/edit.php
index 2b3ffc95c41..518889b85b3 100644
--- a/htdocs/categories/edit.php
+++ b/htdocs/categories/edit.php
@@ -178,7 +178,9 @@ print '';
// Parent category
print '
| '.$langs->trans("In").' | ';
+print img_picto('', 'category', 'class="pictofixedwidth"');
print $form->select_all_categories($type, $object->fk_parent, 'parent', 64, $object->id);
+print ajax_combobox('parent');
print ' |
';
$parameters = array();
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 8f112b9aa98..fa7fb264995 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -8123,12 +8123,9 @@ class Form
$out .= "\n".'