diff --git a/config-paths-needed.json b/config-paths-needed.json
index 8e42753..cf0985d 100644
--- a/config-paths-needed.json
+++ b/config-paths-needed.json
@@ -1,5 +1,6 @@
 [
   [ "selfprivacy", "domain" ],
+  [ "selfprivacy", "username" ],
   [ "selfprivacy", "modules", "auth", "enable" ],
   [ "selfprivacy", "modules", "mastodon" ],
   [ "selfprivacy", "passthru", "auth" ],
diff --git a/module.nix b/module.nix
index aeec3d6..d33b22f 100644
--- a/module.nix
+++ b/module.nix
@@ -167,7 +167,7 @@ in
           POSTGRES_USER = db.user;
           POSTGRES_HOST = db.host;
           USERDATA_FILE_PATH = "/var/lib/mastodon/.userdata.json";
-          OWNER_USERNAME = db.username;
+          OWNER_USERNAME = sp.username;
         };
         serviceConfig = {
           Slice = "mastodon.slice";