diff --git a/src/vitis/vas/rest/class/vmlib/files/Local_files.class.inc b/src/vitis/vas/rest/class/vmlib/files/Local_files.class.inc
index c91d74cdf33dbf0fa8732f639095447b2c05ad34..77e0ce2f949c98598e2d7fac5618f41a5a4dc325 100644
--- a/src/vitis/vas/rest/class/vmlib/files/Local_files.class.inc
+++ b/src/vitis/vas/rest/class/vmlib/files/Local_files.class.inc
@@ -192,7 +192,7 @@ class Local_files extends Files_common implements Files{
         $sKey = str_replace($this->oProperties['ws_data_dir'], "ws_data" , $sFilePath);
         $sKey = str_replace($this->oProperties['dir_export'], "public" , $sKey);
         $sKey = str_replace($this->oProperties['upload_dir'], "upload" , $sKey);
-        $sKey = str_replace($properties['vas_home'] . '/shared', "shared" , $sKey);
+        $sKey = str_replace($this->oProperties['vas_home'] . '/shared', "shared" , $sKey);
 
         $sFileUrl = str_replace("[KEY]", urlencode($sKey), $sDataUrl);
         $sFileUrl = str_replace("[ETAG]", sha1(file_get_contents($sFilePath), false), $sFileUrl);