trouble with my SQL

Hi guys,

Can one of you giude in the right direction? I don't understand why this is not working.

                SqlCommand comm = new SqlCommand("SELECT tbInterestsUtilisateur.interestsID FROM tbInterestsUtilisateur INNER JOIN tbUtilisateur ON tbInterestsUtilisateur.userID = tbUtilisateur.userID WHERE  (tbUtilisateur.userName = '@username')", con);

                SqlParameter param = new SqlParameter();
                param.ParameterName = "@username";
                param.Value = "rimo72";
                comm.Parameters.Add(param);

                SqlDataReader reader = comm.ExecuteReader();

the "reader" variable is always empty.

If I put the value directly in my query, "reader" is populated.

What am I doing wrong?

Thanks