diff --git a/htdocs/core/modules/propale/mod_propale_saphir.php b/htdocs/core/modules/propale/mod_propale_saphir.php
index af7579fb142..72ca13f3a4c 100644
--- a/htdocs/core/modules/propale/mod_propale_saphir.php
+++ b/htdocs/core/modules/propale/mod_propale_saphir.php
@@ -144,7 +144,7 @@ class mod_propale_saphir extends ModeleNumRefPropales
 		// Get entities
 		$entity = getEntity('proposalnumber', 1, $propal);
 
-		$date = $propal->date;
+		$date = isset($propal->date)?$propal->date:dol_now();
 
 		$numFinal = get_next_value($db, $mask, 'propal', 'ref', '', $objsoc, $date, 'next', false, null, $entity);