diff --git a/app/views/jury_validations.py b/app/views/jury_validations.py
index 4d0bd39cc..3da7823cc 100644
--- a/app/views/jury_validations.py
+++ b/app/views/jury_validations.py
@@ -265,8 +265,10 @@ def formsemestre_validation_but(
         """<div class="jury_but">
         """,
     ]
-
-    if formsemestre.etuds_inscriptions[etudid].etat != scu.INSCRIT:
+    inscription = formsemestre.etuds_inscriptions.get(etudid)
+    if not inscription:
+        raise ScoValueError("étudiant non inscrit au semestre")
+    if inscription.etat != scu.INSCRIT:
         return (
             "\n".join(H)
             + f"""