diff --git a/core/Updates/1.5-b5.php b/core/Updates/1.5-b5.php
index 1325fcbfd50d692fa669b77683800219da468c44..a8f27b71b42e04c8333baa4151282b53111f5d5f 100644
--- a/core/Updates/1.5-b5.php
+++ b/core/Updates/1.5-b5.php
@@ -13,7 +13,7 @@
 /**
  * @package Updates
  */
-class Piwik_Updates_1_5_b4 extends Piwik_Updates
+class Piwik_Updates_1_5_b5 extends Piwik_Updates
 {
 	static function getSql($schema = 'Myisam')
 	{