diff --git a/tools/pyang_plugins/gobgp.yang b/tools/pyang_plugins/gobgp.yang
index 46db6cbe..5be6883c 100644
--- a/tools/pyang_plugins/gobgp.yang
+++ b/tools/pyang_plugins/gobgp.yang
@@ -169,6 +169,20 @@ module gobgp {
     reference "RFC7752";
   }
 
+  identity IPV4-MUP {
+    base bgp-types:afi-safi-type;
+    description
+      "MUP IPv4 (AFI,SAFI = 1,85)";
+    reference "https://www.ietf.org/archive/id/draft-mpmz-bess-mup-safi-01.html";
+  }
+
+  identity IPV6-MUP {
+    base bgp-types:afi-safi-type;
+    description
+      "MUP IPv6 (AFI,SAFI = 2,85)";
+    reference "https://www.ietf.org/archive/id/draft-mpmz-bess-mup-safi-01.html";
+  }
+
   grouping gobgp-message-counter {
     description
       "Counters for all BGPMessage types";