diff --git a/ADDITIONS/squirrelmail-plugin/setup.php b/ADDITIONS/squirrelmail-plugin/setup.php
index 78c6d670..f817411e 100644
--- a/ADDITIONS/squirrelmail-plugin/setup.php
+++ b/ADDITIONS/squirrelmail-plugin/setup.php
@@ -3,8 +3,7 @@
 include_once(SM_PATH . 'functions/i18n.php');
 
 function squirrelmail_plugin_init_postfixadmin() {
-    include(SM_PATH.'plugins/postfixadmin/config.php');
-
+    include(dirname(__FILE__) . '/config.php');
     global $squirrelmail_plugin_hooks;
 
     $squirrelmail_plugin_hooks['optpage_register_block']['postfixadmin'] = 'postfixadmin_optpage_register_block';