diff --git a/menu_block.module b/menu_block.module
index 45983a4..5c714d8 100644
--- a/menu_block.module
+++ b/menu_block.module
@@ -671,7 +671,7 @@ function menu_block_tree_output(&$tree, $config = array()) {
       $class[] = 'last';
     }
     // Set a class if the link has children.
-    if ($data['below']) {
+    if ($data['link']['has_children'] && $data['below']) {
       $class[] = 'expanded';
     }
     elseif ($data['link']['has_children']) {