diff --git a/lib/foldermanagement/compressionArchiveUtil.inc.php b/lib/foldermanagement/compressionArchiveUtil.inc.php
index a4047b6..f65a61a 100644
--- a/lib/foldermanagement/compressionArchiveUtil.inc.php
+++ b/lib/foldermanagement/compressionArchiveUtil.inc.php
@@ -71,7 +71,11 @@ class ZipFolder {
         $this->sPattern = "[\*|\%|\\\|\/|\<|\>|\+|\:|\?|\||\'|\"]";
         $this->sFolderPattern = "[\*|\%|\<|\>|\+|\:|\?|\||\'|\"]";
 
-        $this->exportCode = $exportCode;
+        if(!empty($exportCode)){
+            $this->exportCode = $exportCode;
+        }else{
+            $this->exportCode = KTUtil::randomString();
+        }
 
         // Check if the temp directory has been created and stored in session
         $aData = KTUtil::arrayGet($_SESSION['zipcompression'], $exportCode);