diff --git a/ietf-voucher-request.yang b/ietf-voucher-request.yang
index 6fae582..c3853a3 100644
--- a/ietf-voucher-request.yang
+++ b/ietf-voucher-request.yang
@@ -94,12 +94,6 @@ RFCEDITOR: please replace XXXX with the RFC number assigned.
         mandatory false;
       }
 
-      refine "voucher/pinning/pinned-domain-cert" {
-        description "A pinned-domain-cert field
-                     is not valid in a voucher request, and
-                     any occurrence MUST be ignored";
-      }
-
       refine "voucher/last-renewal-date" {
         description "A last-renewal-date field
                      is not valid in a voucher request, and
diff --git a/ietf-voucher.yang b/ietf-voucher.yang
index 0ecaf6a..893ac21 100644
--- a/ietf-voucher.yang
+++ b/ietf-voucher.yang
@@ -302,7 +302,7 @@ RFCEDITOR: please replace XXXX with the RFC number assigned.
           "The additional-configuration attribute contains a
              URL to which the Pledge can retrieve additional
              configuration information.
-             The contents of this URL are vendor specific.
+             The contents of this URL are manufacturer specific.
              This is intended to do things like configure
              a VoIP phone to point to the correct hosted
              PBX, for example.";