diff --git a/sites/all/modules/contrib/toc_node/toc_node.module b/sites/all/modules/contrib/toc_node/toc_node.module
index 5198625..975b711 100644
--- a/sites/all/modules/contrib/toc_node/toc_node.module
+++ b/sites/all/modules/contrib/toc_node/toc_node.module
@@ -313,7 +313,7 @@
 
   static $toc_list_outputed = FALSE;
   $links        = array();
-  $anchor_count = 0;
+  static $anchor_count = 0;
 
   $dom_document = new DOMDocument('1.0', 'utf-8');
   @$dom_document->loadHTML('<?xml encoding="UTF-8"><div id="toc-node">' . $content . '</div>');