diff --git a/conventions/services/avenants.py b/conventions/services/avenants.py
index 97df6f2db..afb16f510 100644
--- a/conventions/services/avenants.py
+++ b/conventions/services/avenants.py
@@ -26,14 +26,14 @@ def __init__(self):
 def create_avenant(request: HttpRequest, convention_uuid: UUID) -> dict[str, Any]:
     parent_convention = (
         Convention.objects.prefetch_related("programme")
-        # .prefetch_related("lot")
-        .prefetch_related("avenants").get(uuid=convention_uuid)
+        .prefetch_related("avenants")
+        .get(uuid=convention_uuid)
     )
     if parent_convention.is_avenant():
         parent_convention = (
             Convention.objects.prefetch_related("programme")
-            # .prefetch_related("lot")
-            .prefetch_related("avenants").get(id=parent_convention.parent_id)
+            .prefetch_related("avenants")
+            .get(id=parent_convention.parent_id)
         )
 
     if request.method == "POST":
diff --git a/conventions/views/avenants.py b/conventions/views/avenants.py
index 03b94d88a..2dcdd1157 100644
--- a/conventions/views/avenants.py
+++ b/conventions/views/avenants.py
@@ -9,11 +9,14 @@
 from django.views.decorators.http import require_http_methods
 
 from conventions.forms import AvenantSearchForm
+from conventions.models.choices import ConventionStatut
+from conventions.models.convention import Convention
 from conventions.permissions import (
     currentrole_permission_required,
     currentrole_permission_required_view_function,
 )
 from conventions.services.avenants import (
+    OngoingAvenantError,
     complete_avenants_for_avenant,
     create_avenant,
     remove_avenant_type_from_avenant,
@@ -26,7 +29,25 @@
 @login_required
 @currentrole_permission_required("convention.add_convention")
 def new_avenant(request: HttpRequest, convention_uuid: UUID) -> HttpResponse:
-    result = create_avenant(request, convention_uuid)
+    try:
+        result = create_avenant(request, convention_uuid)
+    except OngoingAvenantError:
+        convention = Convention.objects.get(uuid=convention_uuid)
+        last_avenant = (
+            convention.avenants.filter(
+                statut__in=[
+                    ConventionStatut.PROJET.label,
+                    ConventionStatut.INSTRUCTION.label,
+                    ConventionStatut.CORRECTION.label,
+                ]
+            )
+            .order_by("-cree_le")
+            .first()
+        )
+        return HttpResponseRedirect(
+            reverse("conventions:recapitulatif", args=[last_avenant.uuid])
+        )
+
     if result["success"] == ReturnStatus.SUCCESS:
         convention = result["convention"]
         target_pathname = None