diff --git a/global/fs/zfs/replication.nix b/global/fs/zfs/replication.nix
index 8f04cd63..9022d7d2 100644
--- a/global/fs/zfs/replication.nix
+++ b/global/fs/zfs/replication.nix
@@ -13,7 +13,7 @@ in mkIf cfg.enable {
       "--compress=lz4"
       "--mbuffer-size=128M"
     ];
-    localSourceAllow = options.services.syncoid.localSourceAllow.default ++ [ "mount" ];
+    localSourceAllow = mkOptionDefault [ "mount" ];
 
     commands = (lists.foldr (name: commands: commands // {
       "${config.global.fs.store}/${name}" = {