diff --git a/src/EventListener/Dca/NavigationDcaListener.php b/src/EventListener/Dca/NavigationDcaListener.php
index 226e3fc..56b8a70 100644
--- a/src/EventListener/Dca/NavigationDcaListener.php
+++ b/src/EventListener/Dca/NavigationDcaListener.php
@@ -40,7 +40,7 @@ public function getPageFields(): array
                 continue;
             }
 
-            $fields[$fieldName] = sprintf('%s <span class="tl_gray">[%s]</span>', $config['label'][0], $fieldName);
+            $fields[$fieldName] = sprintf('%s <span class="tl_gray">[%s]</span>', $config['label'][0] ?? '', $fieldName);
         }
 
         return $fields;