diff --git a/contrib/pane_entity_reference/pane_entity_reference.module b/contrib/pane_entity_reference/pane_entity_reference.module
index 6f62f26..6de5d3c 100644
--- a/contrib/pane_entity_reference/pane_entity_reference.module
+++ b/contrib/pane_entity_reference/pane_entity_reference.module
@@ -100,7 +100,7 @@ function theme_pane_entity_reference_more_link(&$variables) {
     $link_text . '<span class="element-invisible"> ' . $accessible_text . '</span>',
     $path,
     array(
-      'attributes' => array('class' => 'view-more'),
+      'attributes' => array('class' => array('view-more')),
       'html' => TRUE,
       'query' => $query,
       'fragment' => $fragment,