diff --git a/lib/Doctrine/Tree/NestedSet.php b/lib/Doctrine/Tree/NestedSet.php
index 5bfd6cdee..1addb207f 100644
--- a/lib/Doctrine/Tree/NestedSet.php
+++ b/lib/Doctrine/Tree/NestedSet.php
@@ -45,9 +45,10 @@ class Doctrine_Tree_NestedSet extends Doctrine_Tree implements Doctrine_Tree_Int
     {
         // set default many root attributes
         $options['hasManyRoots'] = isset($options['hasManyRoots']) ? $options['hasManyRoots'] : false;
-        if ($options['hasManyRoots'])
+        if ($options['hasManyRoots']) {
             $options['rootColumnName'] = isset($options['rootColumnName']) ? $options['rootColumnName'] : 'root_id';
-  
+        }
+        
         parent::__construct($table, $options);
     }