diff --git a/cake/libs/cache.php b/cake/libs/cache.php
index 5bdb3d7a0..4616a46d2 100644
--- a/cake/libs/cache.php
+++ b/cake/libs/cache.php
@@ -549,10 +549,16 @@ class Cache {
 		return array();
 	}
 
+/**
+ * Write the session when session data is persisted with cache.
+ *
+ * @return void
+ * @access public
+ */ 
 	function __destruct() {
 		if (Configure::read('Session.save') == 'cache' && function_exists('session_write_close')) {
-		        session_write_close();
-		    }
+			session_write_close();
+		}
 	}
 }