diff --git a/src/UI/Implementation/Component/MainControls/Renderer.php b/src/UI/Implementation/Component/MainControls/Renderer.php
index c1b965540632..9fcb9e3ddd97 100644
--- a/src/UI/Implementation/Component/MainControls/Renderer.php
+++ b/src/UI/Implementation/Component/MainControls/Renderer.php
@@ -15,6 +15,7 @@
 use ILIAS\UI\Implementation\Component\Button\Bulky as IBulky;
 use ILIAS\UI\Implementation\Component\MainControls\Slate\Slate as ISlate;
 use ILIAS\UI\Implementation\Render\Template as UITemplateWrapper;
+use ILIAS\Data\URI;
 
 class Renderer extends AbstractComponentRenderer
 {
@@ -370,10 +371,20 @@ protected function renderFooter(Footer $component, RendererInterface $default_re
         $tpl->setVariable('TEXT', $component->getText());
 
         $perm_url = $component->getPermanentURL();
-        if ($perm_url) {
-            $url = $perm_url->getBaseURI() . '?' . $perm_url->getQuery();
+        if ($perm_url instanceof URI) {
+            // Since URI::__toString() is only available in ILIAS >= 7 we have to do that on our own...
+            $uri = $perm_url->getBaseURI();
+            $query = $perm_url->getQuery();
+            if ($query) {
+                $uri .= '?' . $query;
+            }
+            $fragment = $perm_url->getFragment();
+            if ($fragment) {
+                $uri .= '#' . $fragment;
+            }
+
             $tpl->setVariable('PERMA_LINK_LABEL', $this->txt('perma_link'));
-            $tpl->setVariable('PERMANENT_URL', $url);
+            $tpl->setVariable('PERMANENT_URL', $uri);
         }
         return $tpl->get();
     }