diff --git a/metropolis/proto/ext/authorization.proto b/metropolis/proto/ext/authorization.proto
index 12780f7..208e4b6 100644
--- a/metropolis/proto/ext/authorization.proto
+++ b/metropolis/proto/ext/authorization.proto
@@ -25,6 +25,7 @@
     PERMISSION_APPROVE_NODE = 4;
     PERMISSION_UPDATE_NODE_ROLES = 5;
     PERMISSION_READ_NODE_LOGS = 6;
+    PERMISSION_UPDATE_NODE = 7;
 }
 
 // Authorization policy for an RPC method. This message/API does not have the