diff --git a/theme/theme.inc b/theme/theme.inc
index f0a041d..d491a29 100644
--- a/theme/theme.inc
+++ b/theme/theme.inc
@@ -35,6 +35,7 @@ function theme_node_gallery_api_manage_items_form($variables) {
     t('Preview'),
     t('Edit'),
     t('Cover'),
+    '',
   );
   if ($enable_rotation) {
     $header = array(
@@ -46,6 +47,7 @@ function theme_node_gallery_api_manage_items_form($variables) {
       t('Edit'),
       t('Rotation'),
       t('Cover'),
+      '',
     );
   }
   $rows = array();