Smart Archive Reloaded Custom_Generator Months without links

class SAR_Custom_Generator extends SAR_Generator {
    // The list
    protected function generate_list() {
        $months_long = $this->get_months();

        $list = '';
        foreach ( $this->get_years_with_posts( 'desc' ) as $year ) {
            foreach ( range( 12, 1 ) as $i ) {
                // Get post links for current month
                $post_list = $this->generate_post_list( $year, $i, "\n\t\t" );

                if ( !$post_list )
                    continue;

                // Set title format
                if ( $this->args->anchors )
                    $el = "h2 id='{$year}{$i}'";
                else
                    $el = "h2";

                // Append to list
                $list .=
                html( $el, $months_long[$i] . ' ' . $year );

                $list .= html( 'ul', $post_list );
            } // end month block
        } // end year block

        return html( 'div id="smart-archives-list"', $list );
    }
}