diff --git a/Jellyfin.Plugin.SmartPlaylist/Lisp/Interpreter.cs b/Jellyfin.Plugin.SmartPlaylist/Lisp/Interpreter.cs
index 1a1211d..7ad36c0 100644
--- a/Jellyfin.Plugin.SmartPlaylist/Lisp/Interpreter.cs
+++ b/Jellyfin.Plugin.SmartPlaylist/Lisp/Interpreter.cs
@@ -141,7 +141,7 @@ namespace Jellyfin.Plugin.SmartPlaylist.Lisp {
             return args.Last();
         }
         private static Expression _haskeys(IEnumerable<Expression> args) {
-            Object o = (Object) args.First();
+            Object o = new Object(((IInner) args.First()).Inner());
             foreach (var e in args.Skip(1)) {
                 String s = (String) e;
                 PropertyInfo? pi = o.Value().GetType().GetProperty(s.Value());