diff --git a/bda/views.py b/bda/views.py
index 4939e2db..bf9e438b 100644
--- a/bda/views.py
+++ b/bda/views.py
@@ -126,6 +126,12 @@ def places_ics(request, tirage_id):
 @cof_required
 def inscription(request, tirage_id):
     tirage = get_object_or_404(Tirage, id=tirage_id)
+    if timezone.now() < tirage.ouverture:
+        error_desc = "Ouverture le %s" % (
+                tirage.ouverture.strftime('%d %b %Y à %H:%M'))
+        return render(request, 'resume_inscription.html',
+                {   "error_title": "Le tirage n'est pas encore ouvert !",
+                    "error_description": error_desc })
     if timezone.now() > tirage.fermeture:
         participant, created = Participant.objects.get_or_create(
                 user=request.user, tirage=tirage)