diff --git a/layout/comment.html b/layout/comment.html
index 27f16a1..c23f126 100644
--- a/layout/comment.html
+++ b/layout/comment.html
@@ -21,7 +21,7 @@
                 placeholder="nom@domaine.com">
         </fieldset>
         <fieldset>
-            <textarea id="message" name="message" rows="4" maxlength="500"
+            <textarea id="message" name="message" rows="4" maxlength="5000"
                 placeholder="Votre commentaire (texte simple ou Markdown)" required></textarea>
             <div id="preview-container" style="display:none">
                 <p>Prévisualisation :</p>