diff --git a/msvsphere-9.conf b/msvsphere-9.conf
index 673a677..a3faf56 100644
--- a/msvsphere-9.conf
+++ b/msvsphere-9.conf
@@ -19,7 +19,7 @@ treeinfo_version = '9'
 extra_isos = {
     "Certified": [{
         "include_variants": [],
-        "filename": "{release_short}-9.4-{arch}-{disc_type}{suffix}",
+        "filename": "{release_short}-9.4-{arch}-certified{suffix}",
         "skip_src": True,
         "arches": ['x86_64'],
         "failable_arches": ['i386'],