diff --git a/include/class/document_export.class.php b/include/class/document_export.class.php
index a7ff4a5b6..f3c71164c 100644
--- a/include/class/document_export.class.php
+++ b/include/class/document_export.class.php
@@ -91,7 +91,7 @@ class Document_Export
             throw new Exception ( __FILE__.":".__LINE__."cannot recreate zip");
         }
         chdir($this->store_pdf);
-        $zip->addGlob("stamp*pdf");
+        $zip->addGlob("*-stamp_*pdf");
         $zip->close();
 
     }