diff --git a/webseite/topicEditor.php b/webseite/topicEditor.php
index 51a69ac..e322136 100644
--- a/webseite/topicEditor.php
+++ b/webseite/topicEditor.php
@@ -52,8 +52,8 @@ if (isset($_GET['subject']) && isset($_GET['topic'])) {
         $defaultValues['formulas'] = implode(";;;;", $tasks);
         $defaultValues['article'] = $editingTopic->getFinishedArticle();
     }
-} else if (isset($_GET['subjectId'])) {
-    $defaultValues['subjectId'] = $_GET['subjectId'];
+} else if (isset($_GET['subject'])) {
+    $defaultValues['subjectId'] = $_GET['subject'];
 }
 
 if ($_SERVER['REQUEST_METHOD'] == 'POST') {