diff --git a/src/agenda_culturel/templates/agenda_culturel/day-inc.html b/src/agenda_culturel/templates/agenda_culturel/day-inc.html
index 22137ed..fce6461 100644
--- a/src/agenda_culturel/templates/agenda_culturel/day-inc.html
+++ b/src/agenda_culturel/templates/agenda_culturel/day-inc.html
@@ -16,14 +16,14 @@
         <ul>
             {% for category, events in day.events_by_category.items %}
             <li>{{ events.0.category | circle_cat }} 
-                <a href="{{ daytag }}" data-target="{{ daytag }}-category-{{ category.id }}" onClick="toggleModal(event)">{{ events | length }} {{ category }}</a></li>
-                <dialog id="{{ daytag }}-category-{{ category.id }}">
+                <a href="{{ daytag }}" data-target="{{ daytag }}-category-{{ events.0.category.pk }}" onClick="toggleModal(event)">{{ events | length }} {{ category }}</a></li>
+                <dialog id="{{ daytag }}-category-{{ events.0.category.pk }}">
                     <article>
                         <header>
-                            <a href="#{{ daytag }}-category-{{ category.id }}" 
+                            <a href="#{{ daytag }}-category-{{ events.0.category.pk }}"
                                 aria-label="Fermer" 
                                 class="close" 
-                                data-target="{{ daytag }}-category-{{ category.id }}"
+                                data-target="{{ daytag }}-category-{{ events.0.category.pk }}"
                                 onClick="toggleModal(event)"></a>
                                 <h3>{{ events.0.category | small_cat }} du {{ day.date | date:"l j F" }}</h3>
                         </header>