diff --git a/lib/Cake/basics.php b/lib/Cake/basics.php
index a5bf97003..dc477e9b9 100644
--- a/lib/Cake/basics.php
+++ b/lib/Cake/basics.php
@@ -65,7 +65,7 @@ if (!function_exists('debug')) {
  *
  * Only runs if debug level is greater than zero.
  *
- * @param boolean $var Variable to show debug information for.
+ * @param mixed $var Variable to show debug information for.
  * @param boolean $showHtml If set to true, the method prints the debug data in a browser-friendly way.
  * @param boolean $showFrom If set to true, the method prints from where the function was called.
  * @return void