diff --git a/app/but/bulletin_but.py b/app/but/bulletin_but.py
index 6a3f6e239..a533fb801 100644
--- a/app/but/bulletin_but.py
+++ b/app/but/bulletin_but.py
@@ -80,7 +80,7 @@ class BulletinBUT:
             "bonus": fmt_note(res.bonus_ues[ue.id][etud.id])
             if res.bonus_ues is not None and ue.id in res.bonus_ues
             else fmt_note(0.0),
-            "malus": res.malus[ue.id][etud.id],
+            "malus": fmt_note(res.malus[ue.id][etud.id]),
             "capitalise": None,  # "AAAA-MM-JJ" TODO #sco92
             "ressources": self.etud_ue_mod_results(etud, ue, res.ressources),
             "saes": self.etud_ue_mod_results(etud, ue, res.saes),