diff --git a/htdocs/user/class/api_users.class.php b/htdocs/user/class/api_users.class.php
index bb1d9d95294..f1941b8c079 100644
--- a/htdocs/user/class/api_users.class.php
+++ b/htdocs/user/class/api_users.class.php
@@ -747,7 +747,7 @@ class Users extends DolibarrApi
 			unset($cleanObject->clicktodial_loaded);
 
 			unset($cleanObject->datec);
-			unset($cleanObject->datem);
+			unset($cleanObject->tms);
 			unset($cleanObject->members);
 			unset($cleanObject->note);
 			unset($cleanObject->note_private);
diff --git a/htdocs/user/class/usergroup.class.php b/htdocs/user/class/usergroup.class.php
index 135b97bcc43..a93f7ccebfb 100644
--- a/htdocs/user/class/usergroup.class.php
+++ b/htdocs/user/class/usergroup.class.php
@@ -91,7 +91,7 @@ class UserGroup extends CommonObject
 	 *
 	 * @var integer
 	 */
-	public $datem;
+	public $tms;
 
 	/**
 	 * @var string Description
@@ -932,7 +932,7 @@ class UserGroup extends CommonObject
 		$this->name = 'DOLIBARR GROUP SPECIMEN';
 		$this->note = 'This is a note';
 		$this->datec = time();
-		$this->datem = time();
+		$this->tms = time();
 
 		// Members of this group is just me
 		$this->members = array(
diff --git a/htdocs/user/group/card.php b/htdocs/user/group/card.php
index 60c1c30e9fb..b9d16874604 100644
--- a/htdocs/user/group/card.php
+++ b/htdocs/user/group/card.php
@@ -209,6 +209,7 @@ if (empty($reshook)) {
 
 			$object->name = GETPOST("nom", 'alphanohtml');
 			$object->note = dol_htmlcleanlastbr(trim(GETPOST("note", 'restricthtml')));
+			$object->tms = dol_now();
 
 			// Fill array 'array_options' with data from add form
 			$ret = $extrafields->setOptionalsFromPost(null, $object, '@GETPOSTISSET');
diff --git a/htdocs/user/group/list.php b/htdocs/user/group/list.php
index 54117de403a..85df729d00f 100644
--- a/htdocs/user/group/list.php
+++ b/htdocs/user/group/list.php
@@ -173,7 +173,7 @@ $morecss = array();
 
 // Build and execute select
 // --------------------------------------------------------------------
-$sql = "SELECT g.rowid, g.nom as name, g.note, g.entity, g.datec, g.tms as datem, COUNT(DISTINCT ugu.fk_user) as nb, COUNT(DISTINCT ugr.fk_id) as nbpermissions";
+$sql = "SELECT g.rowid, g.nom as name, g.note, g.entity, g.datec, g.tms, COUNT(DISTINCT ugu.fk_user) as nb, COUNT(DISTINCT ugr.fk_id) as nbpermissions";
 $sql .= " FROM ".MAIN_DB_PREFIX."usergroup as g";
 $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."usergroup_user as ugu ON ugu.fk_usergroup = g.rowid";
 $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."usergroup_rights as ugr ON ugr.fk_usergroup = g.rowid";
@@ -471,7 +471,7 @@ while ($i < $imaxinloop) {
 		if (!$i) {
 			$totalarray['nbfield']++;
 		}
-		print '<td class="center nowrap">'.dol_print_date($db->jdate($obj->datem), "dayhour").'</td>';
+		print '<td class="center nowrap">'.dol_print_date($db->jdate($obj->tms), "dayhour").'</td>';
 		if (!$i) {
 			$totalarray['nbfield']++;
 		}