diff --git a/config.inc.php.example b/config.inc.php.example
index a8086f5..1857250 100644
--- a/config.inc.php.example
+++ b/config.inc.php.example
@@ -30,6 +30,7 @@ $tableprefix = 'sc_';  # table prefix used for this installation. Do not use '-'
 ### Users ###
 $adminemail         = 'admin@example.org'; # Contact address for the site administrator. Used as the FROM address in password retrieval e-mails.
 $admin_users = array(''); # admin users  = array('adminnickname', 'user1nick', 'user2nick');
+$adminsCanModifyBookmarksFromOtherUsers = true;  # 'true' if admin users can edit or delete bookmarks belonging to other users. Else 'false'. 
 $reservedusers      = array('all', 'watchlist'); # array of usernames that cannot be registered
 # Antispam
 $antispamQuestion = 'name of this application (no Caps)'; # antispamQuestion: A question to avoid spam
diff --git a/services/bookmarkservice.php b/services/bookmarkservice.php
index 635d8ed..dcce54b 100644
--- a/services/bookmarkservice.php
+++ b/services/bookmarkservice.php
@@ -107,7 +107,7 @@ class BookmarkService {
 
 		$userservice = & ServiceFactory :: getServiceInstance('UserService');
 		$userid = $userservice->getCurrentUserId();
-		if ($userservice->isAdmin($userid))
+		if ($GLOBALS['adminsCanModifyBookmarksFromOtherUsers'] && $userservice->isAdmin($userid))
 		return true;
 		else
 		return ($bookmark['uId'] == $userid);
diff --git a/upgrade.txt b/upgrade.txt
index 6947257..8c9b751 100644
--- a/upgrade.txt
+++ b/upgrade.txt
@@ -1,5 +1,16 @@
 ==== UPGRADE instructions ====
 
+=== From version 0.92 to 0.93 ===
+Message: this version modifies the database to UTF-8 charset. The idea is to convert the content (through BLOB type) and then to change the tables' charsets.
+
+- Backup you database
+- Make a copy from your SemanticScuttle Web directory
+- Upgrade your database by following instructions ONE after ONE (order is important) :
+#NOTHING TO CHANGE IN DB
+- Upgrade your current configuration file (config.inc.php) with respect to config.inc.php.example
+$adminsCanModifyBookmarksFromOtherUsers = true;  # 'true' if admin users can edit or delete bookmarks belonging to other users. Else 'false'.
+
+
 === From version 0.91 to 0.92 ===
 Message: this version modifies the database to UTF-8 charset. The idea is to convert the content (through BLOB type) and then to change the tables' charsets.