diff --git a/inc/template.php b/inc/template.php
index 53986823d16bfa03b88d676fc6fa3b8a0d3ef214..fd0522c059c2ab4af7a707eef29599e820a71e29 100644
--- a/inc/template.php
+++ b/inc/template.php
@@ -1645,7 +1645,7 @@ function tpl_mediaTree() {
  * @param string $empty empty option label
  * @param string $button submit button label
  */
-function tpl_actiondropdown($empty = '', $button = '>') {
+function tpl_actiondropdown($empty = ' ', $button = '>') {
     global $ID;
     global $REV;
     global $lang;