diff --git a/krumo/class.krumo.php b/krumo/class.krumo.php
index fde9e4c..25dd1e5 100755
--- a/krumo/class.krumo.php
+++ b/krumo/class.krumo.php
@@ -605,8 +605,7 @@ This is a list of all the values from the <code><b><?php echo realpath($ini_file
     if ($hive =& krumo::_hive($dummy)) {
       foreach($hive as $i=>$bee){
         // skip closures set as properties
-        $closure_prototype = function(){};
-        if (is_object($bee) && !($bee instanceof $closure_prototype)) {
+        if (is_object($bee) && !($bee instanceof Closure)) {
           unset($hive[$i]->$_recursion_marker);
           // DEVEL: changed 'else' to 'elseif' below
           } elseif (is_array($bee)) {