diff --git a/CRM/Utils/System/Joomla.php b/CRM/Utils/System/Joomla.php
index 64bb31d7787e..fafb599b2ff0 100644
--- a/CRM/Utils/System/Joomla.php
+++ b/CRM/Utils/System/Joomla.php
@@ -529,7 +529,7 @@ public function getJVersion($joomlaBase) {
    */
   public function getBasePath() {
     global $civicrm_root;
-    $joomlaPath = explode('/administrator', $civicrm_root);
+    $joomlaPath = explode(DIRECTORY_SEPARATOR . 'administrator', $civicrm_root);
     $joomlaBase = $joomlaPath[0];
     return $joomlaBase;
   }