diff --git a/metropolis/proto/ext/authorization.proto b/metropolis/proto/ext/authorization.proto
index 4c27f3e..e526ec3 100644
--- a/metropolis/proto/ext/authorization.proto
+++ b/metropolis/proto/ext/authorization.proto
@@ -29,6 +29,7 @@
     PERMISSION_DECOMMISSION_NODE = 8;
     PERMISSION_DELETE_NODE = 9;
     PERMISSION_UPDATE_NODE_LABELS = 10;
+    PERMISSION_NODE_POWER_MANAGEMENT = 11;
 }
 
 // Authorization policy for an RPC method. This message/API does not have the