diff --git a/view/common/wordpress-menu.phtml b/view/common/wordpress-menu.phtml
index c6b0549..9b9041b 100644
--- a/view/common/wordpress-menu.phtml
+++ b/view/common/wordpress-menu.phtml
@@ -39,22 +39,22 @@ if ($wordpress_endpoint) {
     }
   }
 }
-
 //print_r($items);
 
-function render_menu($items, $level_id) {
-  echo '<ul>' . PHP_EOL;
-  foreach ($items[$level_id] as $menu_item) {
-    echo '<li>' . PHP_EOL;
-    echo '<a href="'.$menu_item['url'].'">'.$menu_item['title'].'</a>' . PHP_EOL;
-    if (array_key_exists($menu_item['id'], $items)) {
-        render_menu($items, $menu_item['id']); // render sub menu
+if (!function_exists('render_menu')) {
+  function render_menu($items, $level_id) {
+    echo '<ul>' . PHP_EOL;
+    foreach ($items[$level_id] as $menu_item) {
+      echo '<li>' . PHP_EOL;
+      echo '<a href="'.$menu_item['url'].'">'.$menu_item['title'].'</a>' . PHP_EOL;
+      if (array_key_exists($menu_item['id'], $items)) {
+          render_menu($items, $menu_item['id']); // render sub menu
+      }
+      echo '</li>' . PHP_EOL;
     }
-    echo '</li>' . PHP_EOL;
+    echo '</ul>' . PHP_EOL;
   }
-  echo '</ul>' . PHP_EOL;
 }
-
 if (count($items[0]) > 0) {
   render_menu($items, 0);
 }