diff --git a/htdocs/adherents/card.php b/htdocs/adherents/card.php
index 48b27ec49c2..b34e39872ac 100644
--- a/htdocs/adherents/card.php
+++ b/htdocs/adherents/card.php
@@ -1828,7 +1828,7 @@ if (is_object($objcanvas) && $objcanvas->displayCanvasExists($action)) {
 			$genallowed = $user->rights->adherent->lire;
 			$delallowed = $user->rights->adherent->creer;
 
-			print $formfile->showdocuments('member', $filename, $filedir, $urlsource, $genallowed, $delallowed, $object->model_pdf, 1, 0, 0, 28, 0, '', '', '', $object->default_lang, '', $object);
+			print $formfile->showdocuments('member', $filename, $filedir, $urlsource, $genallowed, $delallowed, $object->model_pdf, 1, 0, 0, 28, 0, '', '', '', (empty($object->default_lang) ? '' : $object->default_lang), '', $object);
 			$somethingshown = $formfile->numoffiles;
 
 			// Show links to link elements