diff --git a/src/agenda_culturel/views.py b/src/agenda_culturel/views.py
index 2049ea6..fa162c5 100644
--- a/src/agenda_culturel/views.py
+++ b/src/agenda_culturel/views.py
@@ -732,6 +732,10 @@ class ContactMessageCreateView(SuccessMessageMixin, CreateView):
     success_url = reverse_lazy("home")
     success_message = _("Your message has been sent successfully.")
 
+    def __init__(self, *args, **kwargs):
+        self.event = None
+        super().__init__(*args, **kwargs)
+
     def get_form(self, form_class=None):
         if form_class is None:
             form_class = self.get_form_class()