diff --git a/cron.php b/cron.php
index 5d25f884186..26c4a253ca3 100644
--- a/cron.php
+++ b/cron.php
@@ -9,7 +9,7 @@
 /**
  * Root directory of Drupal installation.
  */
-define('DRUPAL_ROOT', dirname(realpath(__FILE__)));
+define('DRUPAL_ROOT', getcwd());
 
 include_once DRUPAL_ROOT . '/includes/bootstrap.inc';
 drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
diff --git a/index.php b/index.php
index d776d767a75..f83ae4c019a 100644
--- a/index.php
+++ b/index.php
@@ -15,7 +15,7 @@
 /**
  * Root directory of Drupal installation.
  */
-define('DRUPAL_ROOT', dirname(realpath(__FILE__)));
+define('DRUPAL_ROOT', getcwd());
 
 require_once DRUPAL_ROOT . '/includes/bootstrap.inc';
 drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
diff --git a/install.php b/install.php
index 60834d72e08..939f6404622 100644
--- a/install.php
+++ b/install.php
@@ -4,7 +4,7 @@
 /**
  * Root directory of Drupal installation.
  */
-define('DRUPAL_ROOT', dirname(realpath(__FILE__)));
+define('DRUPAL_ROOT', getcwd());
 
 require_once DRUPAL_ROOT . '/includes/install.inc';
 
diff --git a/update.php b/update.php
index b45f2045c8f..215727314b4 100644
--- a/update.php
+++ b/update.php
@@ -4,7 +4,7 @@
 /**
  * Root directory of Drupal installation.
  */
-define('DRUPAL_ROOT', dirname(realpath(__FILE__)));
+define('DRUPAL_ROOT', getcwd());
 
 /**
  * @file
diff --git a/xmlrpc.php b/xmlrpc.php
index 55ac6f11022..4b6b1153fce 100644
--- a/xmlrpc.php
+++ b/xmlrpc.php
@@ -9,7 +9,7 @@
 /**
  * Root directory of Drupal installation.
  */
-define('DRUPAL_ROOT', dirname(realpath(__FILE__)));
+define('DRUPAL_ROOT', getcwd());
 
 include_once DRUPAL_ROOT . '/includes/bootstrap.inc';
 drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);