diff --git a/manifest.json b/manifest.json
index f855c43..6c4d008 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,7 @@
 {
     "name": "Zerobin",
     "id": "zerobin",
+    "packaging_format": 1,
     "description": {
         "en": "A minimalist, opensource online pastebin where the server has zero knowledge of pasted data",
         "fr": "Un pastebin minimaliste, libre et où le serveur n'a aucune connaissance des données copiées"