diff --git a/pym/update/update.py b/pym/update/update.py
index b0edba6..9786779 100644
--- a/pym/update/update.py
+++ b/pym/update/update.py
@@ -378,9 +378,6 @@ class Update(MethodsInterface):
                        "cl_update_rep_rev"],
                       where="cl_update_rep_name", eq=repname, limit=1))
 
-        if revision == "master" and (
-            repname in ("calculate", "distros", "gentoo", "portage")):
-            revision = "master64"
         if not url or not rpath:
             raise UpdateError(_("Configuration variables for repositories "
                                 "are not setup"))