<div class="mainSub">
<div class="wrapper">
<nav>
- <form method="get" action="." class="big marged" id="search-form">
+ <form method="get" action="{% url 'search' %}" class="big marged" id="search-form">
<label for="id_q">Rechercher:</label><input id="id_q" name="q" type="text"><button class="icon-search"></button>
</form>
</nav>