diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index f9f39bf3..6c470777 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -584,7 +584,7 @@ def notes_add(
                                 evaluation_id=evaluation_id, etudid=etudid
                             ).first()
                             raise ScoBugCatcher(
-                                f"dup: existing={existing_note}"
+                                f"dup: existing={existing_note} value={value}"
                             ) from exc
                     changed = True
             else: