diff --git a/app/controllers/course/wiki.php b/app/controllers/course/wiki.php
index 421617cc1aaea8bee206c893d38b0eef16ca0198..7a3a09ed31f512757295e96216f53e97ece5d2d4 100644
--- a/app/controllers/course/wiki.php
+++ b/app/controllers/course/wiki.php
@@ -736,7 +736,7 @@ class Course_WikiController extends AuthenticatedController
         $parent_id = $parent_id ?? $this->range->getConfiguration()->WIKI_STARTPAGE_ID;
         PageLayout::setTitle(_('Neue Wikiseite erstellen'));
         $options = [
-            '-' => _('Keine')
+            '' => _('Keine')
         ];
         WikiPage::findEachBySQL(
             function (WikiPage $p) use (&$options) {