diff --git a/src/app/resource/controllers/ExportController.php b/src/app/resource/controllers/ExportController.php
index 798821380d343a93a8e1db923bbd887ca635ebbf..6792354254223553bd716ea7593b60721688571a 100644
--- a/src/app/resource/controllers/ExportController.php
+++ b/src/app/resource/controllers/ExportController.php
@@ -254,7 +254,7 @@ class ExportController
 
         $copies = '';
         foreach ($listInstances as $listInstance) {
-            if (!empty($copyEntities)) {
+            if (!empty($copies)) {
                 $copies .= ' ; ';
             }
             if ($listInstance['item_type'] == 'user_id') {