diff --git a/metropolis/proto/ext/authorization.proto b/metropolis/proto/ext/authorization.proto
index 2988010..42beb88 100644
--- a/metropolis/proto/ext/authorization.proto
+++ b/metropolis/proto/ext/authorization.proto
@@ -21,6 +21,7 @@
     PERMISSION_UNSPECIFIED = 0;
     PERMISSION_GET_REGISTER_TICKET = 1;
     PERMISSION_READ_CLUSTER_STATUS = 2;
+    PERMISSION_UPDATE_NODE_SELF = 3;
 }
 
 // Authorization policy for an RPC method. This message/API does not have the