diff --git a/phpBB/common.php b/phpBB/common.php
index ba0a72fe2e..c8c6e1b6b7 100644
--- a/phpBB/common.php
+++ b/phpBB/common.php
@@ -24,8 +24,8 @@ if ( !defined('IN_PHPBB') )
 	die("Hacking attempt");
 }
 
-//
 error_reporting  (E_ERROR | E_WARNING | E_PARSE); // This will NOT report uninitialized variables
+
 set_magic_quotes_runtime(0); // Disable magic_quotes_runtime
 
 // The following code (unsetting globals)
@@ -82,10 +82,11 @@ if (@ini_get('register_globals') == '1' || strtolower(@ini_get('register_globals
 
 	while (list($var,) = @each($input))
 	{
-		if (!in_array($var, $not_unset))
+		if (in_array($var, $not_unset))
 		{
-			unset($$var);
+			die('Hacking attempt!');
 		}
+		unset($$var);
 	}
 
 	unset($input);