diff --git a/Formatter/MarkdownFormatter.php b/Formatter/MarkdownFormatter.php
index a3859ec..74ae888 100644
--- a/Formatter/MarkdownFormatter.php
+++ b/Formatter/MarkdownFormatter.php
@@ -43,7 +43,7 @@ class MarkdownFormatter extends AbstractFormatter
                 $markdown .= sprintf("%s:\n\n", $name);
 
                 foreach ($filter as $key => $value) {
-                    $markdown .= sprintf("  * %s: %s\n", $key, $value);
+                    $markdown .= sprintf("  * %s: %s\n", $key, trim(json_encode($value), '"'));
                 }
 
                 $markdown .= "\n";
diff --git a/Resources/views/method.html.twig b/Resources/views/method.html.twig
index bcf4232..726a66d 100644
--- a/Resources/views/method.html.twig
+++ b/Resources/views/method.html.twig
@@ -51,7 +51,7 @@
                     <td>
                         <ul>
                         {% for key, value in infos %}
-                            <li><em>{{ key }}</em> : {{ value }}</li>
+                            <li><em>{{ key }}</em> : {{ value|json_encode|trim('"') }}</li>
                         {% endfor %}
                         </ul>
                     </td>