diff --git a/vas/rest/class/vmlib/phpUtil.inc b/vas/rest/class/vmlib/phpUtil.inc
index be016ed8f9b022abb8d9a0f6e176b8ba5d06a410..da5dbcaaa8cfade7fda55a171b8cf65dcac55de3 100755
--- a/vas/rest/class/vmlib/phpUtil.inc
+++ b/vas/rest/class/vmlib/phpUtil.inc
@@ -1720,9 +1720,11 @@ function isDirInWsDataDir($sModule, $sObject, $mId, $sDirectoryName = '') {
   *@param $sFileName Name of the file to read.
   *@return true or false.
   */
-function fileExistsInWsDataDir($sModule, $sObject, $mId, $sDirectory = '', $sFileName) {
+function fileExistsInWsDataDir($sModule, $sObject, $mId = '', $sDirectory = '', $sFileName) {
     global $properties;
-    $sDestDir = $properties['ws_data_dir'] . "/" . $sModule . "/" . $sObject . "/" . $mId;
+    $sDestDir = $properties['ws_data_dir'] . "/" . $sModule . "/" . $sObject;
+    if(!empty($mId))
+        $sDestDir .= "/" . $mId;
     if(!empty($sDirectory))
         $sDestDir .= "/" . $sDirectory;
     if ($properties['fileS3Uploader'] === true) {