diff --git a/htdocs/adherents/class/adherent.class.php b/htdocs/adherents/class/adherent.class.php
index f12a1b47fee..f82f3005514 100644
--- a/htdocs/adherents/class/adherent.class.php
+++ b/htdocs/adherents/class/adherent.class.php
@@ -1344,7 +1344,7 @@ class Adherent extends CommonObject
 
         $sql = "UPDATE ".MAIN_DB_PREFIX."adherent SET";
         $sql.= " statut = 1";
-        $sql.= ", datevalid = ".$this->db->idate($now);
+        $sql.= ", datevalid = '".$this->db->idate($now)."'";
         $sql.= ", fk_user_valid=".$user->id;
         $sql.= " WHERE rowid = ".$this->id;
 
diff --git a/htdocs/core/triggers/interface_50_modMailmanspip_Mailmanspipsynchro.class.php b/htdocs/core/triggers/interface_50_modMailmanspip_Mailmanspipsynchro.class.php
index 20556018b58..17ba4b11f4f 100644
--- a/htdocs/core/triggers/interface_50_modMailmanspip_Mailmanspipsynchro.class.php
+++ b/htdocs/core/triggers/interface_50_modMailmanspip_Mailmanspipsynchro.class.php
@@ -183,7 +183,7 @@ class InterfaceMailmanSpipsynchro
             // Add user into some linked tools (mailman, spip, etc...)
 			if (($object->oldcopy->email != $object->email) || ($object->oldcopy->typeid != $object->typeid))	// TODO Do del/add also if type change
 			{
-				if ($object->oldcopy->email != $object->email)    // If email has changed we delete mailman subscription for old email
+				if (is_object($object->oldcopy) && ($object->oldcopy->email != $object->email))    // If email has changed we delete mailman subscription for old email
 				{
 					if ($object->oldcopy->del_to_abo() < 0)
 					{