diff --git a/program/include/iniset.php b/program/include/iniset.php
index 92a2d90..5f7c0ad 100755
--- a/program/include/iniset.php
+++ b/program/include/iniset.php
@@ -46,7 +46,7 @@ if (!defined('INSTALL_PATH')) {
 }
 
 if (!defined('RCMAIL_CONFIG_DIR')) {
-    define('RCMAIL_CONFIG_DIR', INSTALL_PATH . 'config');
+    define('RCMAIL_CONFIG_DIR', '/etc/roundcube');
 }
 
 // make sure path_separator is defined
diff --git a/program/include/main.inc b/program/include/main.inc
index 9206a62..85f9459 100644
--- a/program/include/main.inc
+++ b/program/include/main.inc
@@ -1178,7 +1178,7 @@ function write_log($name, $line)
 
     // log_driver == 'file' is assumed here
     if (empty($CONFIG['log_dir']))
-      $CONFIG['log_dir'] = INSTALL_PATH.'logs';
+      $CONFIG['log_dir'] = '/var/log/roundcube';
 
     // try to open specific log file for writing
     $logfile = $CONFIG['log_dir'].'/'.$name;
diff --git a/program/include/rcube_config.php b/program/include/rcube_config.php
index 19e1be3..d362487 100644
--- a/program/include/rcube_config.php
+++ b/program/include/rcube_config.php
@@ -66,7 +66,7 @@ class rcube_config
 
         // fix paths
         $this->prop['log_dir'] = $this->prop['log_dir'] ? realpath(unslashify($this->prop['log_dir'])) : INSTALL_PATH . 'logs';
-        $this->prop['temp_dir'] = $this->prop['temp_dir'] ? realpath(unslashify($this->prop['temp_dir'])) : INSTALL_PATH . 'temp';
+        $this->prop['temp_dir'] = $this->prop['temp_dir'] ? realpath(unslashify($this->prop['temp_dir'])) : '/tmp';
     
         // fix default imap folders encoding
         foreach (array('drafts_mbox', 'junk_mbox', 'sent_mbox', 'trash_mbox') as $folder)
--- ./installer/index.php.orig
+++ ./installer/index.php
@@ -4,7 +4,7 @@
 ini_set('display_errors', 1);
 
 define('INSTALL_PATH', realpath(dirname(__FILE__) . '/../').'/');
-define('RCMAIL_CONFIG_DIR', INSTALL_PATH . 'config');
+define('RCMAIL_CONFIG_DIR', '/etc/roundcube');
 
 $include_path  = INSTALL_PATH . 'program/lib' . PATH_SEPARATOR;
 $include_path .= INSTALL_PATH . 'program' . PATH_SEPARATOR;