diff --git a/lib/models/BlubberThread.php b/lib/models/BlubberThread.php
index 2bc78a93b10751bf630ca60e80491f3185dea790..aa6016fc4615b4dbf321eaeb00da6c4936ac58fd 100644
--- a/lib/models/BlubberThread.php
+++ b/lib/models/BlubberThread.php
@@ -470,7 +470,7 @@ class BlubberThread extends SimpleORMap implements PrivacyObject
                     if (
                         isset($nav)
                         && $nav->isVisible(true)
-                        && count($module->getTabNavigation($this['context_id'])) > 0
+                        && $module->getTabNavigation($this['context_id'])
                         && $GLOBALS['perm']->have_studip_perm($tool->getVisibilityPermission(), $this['context_id'])
                     ) {
                         $icons[] = $nav;