diff --git a/apps/registration/views.py b/apps/registration/views.py
index be6397a..b296a2f 100644
--- a/apps/registration/views.py
+++ b/apps/registration/views.py
@@ -377,7 +377,7 @@ class AuthorizationTemplateView(TemplateView):
                     or self.request.user.is_authenticated and self.request.user.registration.is_admin:
                 context["registration"] = registration
         if "tournament_id" in self.request.GET and self.request.GET.get("tournament_id").isnumeric():
-            if not Tournament.objects.filter(pk=self.request.get("tournament_id")).exists():
+            if not Tournament.objects.filter(pk=self.request.GET.get("tournament_id")).exists():
                 raise PermissionDenied("Ce tournoi n'existe pas.")
             context["tournament"] = Tournament.objects.get(pk=self.request.GET.get("tournament_id"))
         else: