diff --git a/app/scodoc/sco_formsemestre_edit.py b/app/scodoc/sco_formsemestre_edit.py
index d7e6349a..1fdafb03 100644
--- a/app/scodoc/sco_formsemestre_edit.py
+++ b/app/scodoc/sco_formsemestre_edit.py
@@ -1332,6 +1332,8 @@ def do_formsemestre_clone(
                 args = dict(e.__dict__)
                 args.pop("_sa_instance_state")
                 args.pop("id")
+                args.pop("date_debut", None)
+                args.pop("date_fin", None)
                 args["moduleimpl_id"] = modimpl_new.id
                 new_eval = Evaluation(**args)
                 db.session.add(new_eval)
@@ -1339,7 +1341,10 @@ def do_formsemestre_clone(
                 # Copie les poids APC de l'évaluation
                 new_eval.set_ue_poids_dict(e.get_ue_poids_dict())
     db.session.commit()
-
+    if clone_evaluations:
+        flash(
+            "Attention: les évaluations n'ont plus de dates: n'oubliez pas de les indiquer"
+        )
     # 3- copy uecoefs
     for ue_coef in FormSemestreUECoef.query.filter_by(
         formsemestre_id=formsemestre_orig.id