diff --git a/manifest.json b/manifest.json
index 34d810b..945661a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,7 @@
 {
   "name": "Transmission",
   "id": "transmission",
+  "packaging_format": 1,
   "description": {
     "en": "A Fast, Easy, and Free BitTorrent Client",
     "fr": "Un client BitTorrent libre et rapide"