Problem with dynamic parameters in Dapper

gistfile1.cs

When running this code, I get SqlException with this message: "Incorrect syntax near '@MaxCount'.". Why isn't the @MaxCount parameter replaced with the given value?

    public IEnumerable<ArticleInfo> GetPopularArticles(Date fromDate, Date toDate, int maxCount)
    {
      var popularArticles = new List<ArticleInfo>();
      IEnumerable<dynamic> rawArticles;

      using (var connection = CreateOpenedConnection())
      {
        string queryText =
          " select top @MaxCount" +
          "   au.Url," +
          "   am.Title," +
          "   av.[Count] as ViewsCount" +
          "   av.[Date]" +
          " from ArticleViews av" +
          " left join ArticleUrls au on av.ArticleId = au.Id" +
          " left join ArticleMetadata am on am.ArticleId = au.Id" +
          " order by av.[Count] desc, av.[Date] desc, am.Title, au.Id";

        rawArticles =
          connection.Query(
            queryText,
            new { MaxCount = maxCount });
      }
      // ...