ASP.NET - Unknown column 'in_status' in 'field list'

[Jared Asmus]

I'm trying to call my first MySql stored procedure in ASP.NET and get this error: MySql.Data.MySqlClient.MySqlException: Unknown column 'in_status' in 'field list'

Here is the Stored Procedure:
CREATE DEFINER=`xxxxx`@`xxxxx`
PROCEDURE `retrieve_Categories`(in_status VARCHAR(5))
READS SQL DATA
BEGIN
Select idCategory, Category, Description, Status
From Category
Where Status = in_status
Order by Category;
END

Here is the code in .NET that calls it:
cmd.CommandText = "CALL retrieve_Categories(in_status);";
MySqlParameter newParameter = new MySqlParameter("in_status", MySqlDbType.String);
newParameter.Value = status;
cmd.Parameters.Add(newParameter);