public function prev() {
		$prev         = clone $this;
		$current_page = isset( $this->query_args['paged'] )
			? (int) $this->query_args['paged']
			: 1;

		if ( $current_page === 1 ) {
			$prev->void_query = true;

			return $prev;
		}

		// If we're on page 1 we know there will be previous posts.
		$prev->page( $current_page - 1 );
		$prev->last_built_query = null;

		return $prev;
	}