diff --git a/lib/rules/subsystem.js b/lib/rules/subsystem.js
index a910baf..05c221f 100644
--- a/lib/rules/subsystem.js
+++ b/lib/rules/subsystem.js
@@ -21,6 +21,7 @@ const validSubsystems = [
   'node',
   'node-api',
   'perfctr',
+  'permission',
   'policy',
   'src',
   'test',