diff --git a/webapp/src/Controller/BaseController.php b/webapp/src/Controller/BaseController.php
index 145be14fc7..4a75c61a6f 100644
--- a/webapp/src/Controller/BaseController.php
+++ b/webapp/src/Controller/BaseController.php
@@ -561,7 +561,6 @@ protected function processAddFormForExternalIdEntity(
                         return $response;
                     }
                 } else {
-                    $this->em->persist($entity);
                     $this->saveEntity($entity, null, true);
                 }
                 return $this->redirect($urlGenerator());