diff --git a/classes/Exporter.php b/classes/Exporter.php
index 89084dcd72524a74f3fdc3427c84ce0bda060f10..97b9eaf26dcf5b467387942da27054086798d4ae 100644
--- a/classes/Exporter.php
+++ b/classes/Exporter.php
@@ -39,7 +39,7 @@ class Exporter
         array_push($triples, $t);
         $t['o'] = LS . 'Application';
         array_push($triples, $t);
-        if ($conf['parentApp'] != null) {
+        if (isset($conf['parentApp']) && $conf['parentApp'] !== null) {
             $t['p'] = OPMV . 'wasDerivedFrom';
             $t['o'] = $conf['parentApp'];
             array_push($triples, $t);
diff --git a/index.php b/index.php
index 7fafc57aecf48f0c2d52c82d938a2ab959d6a81c..bf2a12d18312718eef917855fd0e788b4f05ccd2 100644
--- a/index.php
+++ b/index.php
@@ -47,7 +47,6 @@ if ($acceptContentType === null) {
 }
 
 if ($conf['export'] && $_GET['q'] === 'export') {
-    include_once('settings.inc.php');
     $exp = new Exporter();
     header('Content-Type: text/plain');
     $exp->run();