Index: roundcubemail-1.4.8/program/include/iniset.php
===================================================================
--- roundcubemail-1.4.8.orig/program/include/iniset.php
+++ roundcubemail-1.4.8/program/include/iniset.php
@@ -28,7 +28,7 @@ if (!defined('INSTALL_PATH')) {
 }
 
 if (!defined('RCMAIL_CONFIG_DIR')) {
-    define('RCMAIL_CONFIG_DIR', getenv('ROUNDCUBE_CONFIG_DIR') ?: (INSTALL_PATH . 'config'));
+    define('RCMAIL_CONFIG_DIR', getenv('ROUNDCUBE_CONFIG_DIR') ?: '/etc/roundcubemail');
 }
 
 if (!defined('RCUBE_LOCALIZATION_DIR')) {