diff --git a/Utils/Parser/Markdown/Markdown.php b/Utils/Parser/Markdown/Markdown.php
index 8df4d7057..07fde27d4 100644
--- a/Utils/Parser/Markdown/Markdown.php
+++ b/Utils/Parser/Markdown/Markdown.php
@@ -802,7 +802,7 @@ class Markdown
         return $block;
     }
 
-    public function line(string $text) : string
+    protected static function line(string $text) : string
     {
         $markup = '';