diff --git a/extensions/plannotator/package.json b/extensions/plannotator/package.json
index 7bf4dec..0f3f85e 100644
--- a/extensions/plannotator/package.json
+++ b/extensions/plannotator/package.json
@@ -16,7 +16,7 @@
   },
   "keywords": ["pi-package", "plannotator", "plan-review", "ai-agent", "coding-agent"],
   "pi": {
-    "extensions": ["./"],
+    "extensions": ["./index.ts"],
     "skills": ["./skills"]
   },
   "files": [