diff --git a/manifest.json b/manifest.json
index a30c5df..23d0592 100644
--- a/manifest.json
+++ b/manifest.json
@@ -5,6 +5,7 @@
         "en": "A fast paced puzzle game.",
         "fr": "Un jeu de puzzle très rapide"
     },
+    "licence": "GNU GPL-3",
     "developer": {
         "name": "opi",
         "email": "opi@no-log.org",