diff --git a/app/processors/utilities.py b/app/processors/utilities.py
index bc28c70..b3483f5 100644
--- a/app/processors/utilities.py
+++ b/app/processors/utilities.py
@@ -4,6 +4,6 @@ from app import app
 def utilities_processor():
     """ Add some utilities to render context """
     return dict(
-        len=len,
-        enumerate=enumerate
+        # len=len,
+        # enumerate=enumerate
     )
diff --git a/app/templates/forum/forum.html b/app/templates/forum/forum.html
index 45efe52..6fbceed 100644
--- a/app/templates/forum/forum.html
+++ b/app/templates/forum/forum.html
@@ -19,15 +19,15 @@
 				<tr><td><a href='{{ url_for('forum_topic', f=t.forum, t=t) }}'>{{ t.title }}</a></td>
 					<td><a href='{{ url_for('user', username=t.author.name) }}'>{{ t.author.name }}</a></td>
 					<td>{{ t.date_created | date }}</td>
-					<td>{{ t.thread.comments | length }}</td>
+					<td>{{ t.thread.comments.count() }}</td>
 					<td>{{ t.views }} </td></tr>
 			{% endfor %}
 		</table>
-	{% elif len(f.sub_forums) == 0 %}
+	{% elif not f.sub_forums %}
 	  <p>Il n'y a aucun topic sur ce forum ! Animons-le vite !</p>
 	{% endif %}
 
-	{% if len(f.sub_forums) > 0 %}
+	{% if f.sub_forums %}
 		<h2>Forums</h2>
 		<table class=forumlist>
 		<tr><th>{{ f.name }}</th><th>Nombre de sujets</th></tr>
@@ -41,7 +41,7 @@
 		</table>
 	{% endif %}
 
-	{% if len(f.sub_forums) == 0 or (current_user.is_authenticated and current_user.priv('access-admin-board')) %}
+	{% if (not f.sub_forums) == 0 or (current_user.is_authenticated and current_user.priv('access-admin-board')) %}
 	<div class=form>
 		<h2>Créer un nouveau sujet</h2>
 		<form action="" method="post" enctype="multipart/form-data">