diff --git a/manifest.json b/manifest.json
index 4684cdd6..3500c581 100644
--- a/manifest.json
+++ b/manifest.json
@@ -52,8 +52,8 @@
                     "en": "Choose the database to be used for the Hubzilla [mysql:1,postgresql:2]",
                     "fr": "Choisissez la database de l'Hubzilla [mysql:1,postgresql:2]"
                 },
-                "choices": ["1", "2"],
-                "default": "1"
+                "choices": [1, 2],
+                "default": 1
             }       ]
     }
 }
diff --git a/scripts/install b/scripts/install
index a06ff1fe..0d4e8942 100755
--- a/scripts/install
+++ b/scripts/install
@@ -30,7 +30,7 @@ admin=$YNH_APP_ARG_ADMIN
 email=$(sudo yunohost user info $admin | grep "mail:" | cut -d' ' -f2)
 upload="256M"
 random_string="$(ynh_string_random)$(ynh_string_random)$(ynh_string_random)"
-database=$YNH_APP_ARG_DB
+database=$YNH_APP_ARG_DATABASE
 
 ### If it's a multi-instance app, meaning it can be installed several times independently
 ### The id of the app as stated in the manifest is available as $YNH_APP_ID