diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 32798f3724d..42be01bcc13 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -5526,7 +5526,7 @@ class Facture extends CommonInvoice
 						$sendContent = make_substitutions($content, $substitutionarray, $outputlangs, 1);
 
 						// Recipient
-						$to = '';
+						$to = array();
 						$res = $tmpinvoice->fetch_thirdparty();
 						$recipient = $tmpinvoice->thirdparty;
 						if ($res > 0) {
@@ -5534,13 +5534,12 @@ class Facture extends CommonInvoice
 							if (is_array($tmparraycontact) && count($tmparraycontact) > 0) {
 								foreach ($tmparraycontact as $data_email) {
 									if (!empty($data_email['email'])) {
-										$to = $data_email['email'];
-										break;
+										$to[] = $data_email['firstname'] . ' '. $data_email['lastname']. '<'.$data_email['email'].'>';
 									}
 								}
 							}
 							if (empty($to) && !empty($recipient->email)) {
-								$to = $recipient->email;
+								$to[] = $recipient->email;
 							} else {
 								$errormesg = "Failed to send remind to thirdparty id=".$tmpinvoice->socid.". No email defined for user.";
 								$error++;
@@ -5557,9 +5556,11 @@ class Facture extends CommonInvoice
 							$error++;
 						}
 
-						if (!$error && $to) {
+						if (!$error && !empty($to)) {
 							$this->db->begin();
 
+							$to = implode(',', $to);
+
 							// Errors Recipient
 							$errors_to = $conf->global->MAIN_MAIL_ERRORS_TO;