diff --git a/importexport/inc/class.importexport_admin_prefs_sidebox_hooks.inc.php b/importexport/inc/class.importexport_admin_prefs_sidebox_hooks.inc.php
index 09761ac684..4036297e91 100644
--- a/importexport/inc/class.importexport_admin_prefs_sidebox_hooks.inc.php
+++ b/importexport/inc/class.importexport_admin_prefs_sidebox_hooks.inc.php
@@ -133,7 +133,7 @@ class importexport_admin_prefs_sidebox_hooks
 				),false)."','_blank',850,440,'yes')",
 				'icon' => 'export',
 				'app' => 'importexport',
-				'text' => in_array($appname, array('sitemgr')) || count($plugins[$appname]['export']) > 1 ? 'Export' : 'Export CSV'
+				'text' => in_array($appname, array('sitemgr')) || count($plugins[$appname]['export'] ?? []) > 1 ? 'Export' : 'Export CSV'
 			);
 			if($GLOBALS['egw_info']['flags']['disable_importexport']['export']) {
 				$file['Export CSV']['link'] = '';