diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index 6780a6bcb5..caed835506 100644
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -97,7 +97,8 @@ function wp_install_defaults($user_id) {
 	// First post
 	$now = date('Y-m-d H:i:s');
 	$now_gmt = gmdate('Y-m-d H:i:s');
-	$wpdb->query("INSERT INTO $wpdb->posts (post_author, post_date, post_date_gmt, post_content, post_excerpt, post_title, post_category, post_name, post_modified, post_modified_gmt, comment_count, to_ping, pinged, post_content_filtered) VALUES ($user_id, '$now', '$now_gmt', '".$wpdb->escape(__('Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!'))."', '', '".$wpdb->escape(__('Hello world!'))."', '0', '".$wpdb->escape(__('hello-world'))."', '$now', '$now_gmt', '1', '', '', '')");
+	$first_post_guid = get_option('home') . '/?p=1';
+	$wpdb->query("INSERT INTO $wpdb->posts (post_author, post_date, post_date_gmt, post_content, post_excerpt, post_title, post_category, post_name, post_modified, post_modified_gmt, guid, comment_count, to_ping, pinged, post_content_filtered) VALUES ($user_id, '$now', '$now_gmt', '".$wpdb->escape(__('Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!'))."', '', '".$wpdb->escape(__('Hello world!'))."', '0', '".$wpdb->escape(__('hello-world'))."', '$now', '$now_gmt', '$first_post_guid', '1', '', '', '')");
 	$wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (1, 1)" );
 
 	// Default comment