diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 8605ceb..a76f5db 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -1053,9 +1053,7 @@ class Event(models.Model):
             ),
         ]
 
-    def alternative_events_if_not_found(day, slug):
-        title = slug.replace("-", " ")
-        logger.warning(title)
+    def alternative_events_if_not_found(day, title):
         qs = (
             Event.objects.filter(
                 Q(other_versions__isnull=True)
diff --git a/src/agenda_culturel/templates/page-event-not-found.html b/src/agenda_culturel/templates/page-event-not-found.html
index d69cb9f..bb7e2e8 100644
--- a/src/agenda_culturel/templates/page-event-not-found.html
+++ b/src/agenda_culturel/templates/page-event-not-found.html
@@ -37,7 +37,9 @@
       <h2>Rien trouvé&nbsp;?</h2>
       <p>Si tu n'as pas trouvé ton bonheur dans toutes ces pages, tu peux aussi fouiller le site&nbsp;:</p>
     </header>
-    <form method="get" class="form django-form">
+    <form method="get"
+          class="form django-form"
+          action="{% url 'event_search' %}">
       {{ filter.form.as_div }}
       <button type="submit">Rechercher</button>
       <a href="{% url 'event_search' %}">Recherche simplifiée {% picto_from_name "chevron-right" %}</a>
diff --git a/src/agenda_culturel/views.py b/src/agenda_culturel/views.py
index 195ee1e..827fedf 100644
--- a/src/agenda_culturel/views.py
+++ b/src/agenda_culturel/views.py
@@ -776,8 +776,10 @@ class EventDetailView(UserPassesTestMixin, DetailView, ModelFormMixin):
                 m = self.kwargs["month"]
                 d = self.kwargs["day"]
                 day = date(y, m, d)
-                s = self.kwargs["extra"]
+                s = self.kwargs["extra"].replace("-", " ")
                 qs = get_event_qs(request)
+                request.GET._mutable = True
+                request.GET["q"] = s
                 filter = SimpleSearchEventFilter(
                     request.GET,
                     queryset=qs,