Error Mysqli sentencia preparada con un if simple

[NSD]

Código PHP:

$sentencia = "  SELECT if(articulos.stock>0,'si','no') AS existeStock FROM articulos;";
            
        $this->resultados = $this->rawQuery($sentencia, $bindParametros);
 

Ocurrio un error preparando la sentencia ( SELECT if(articulos.stock>0,'si','no') AS existeStock FROM articulos;) You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''si','no') AS existeStock FROM articulos' at line 1