diff --git a/app/scodoc/sco_formsemestre_inscriptions.py b/app/scodoc/sco_formsemestre_inscriptions.py
index c12fa73a..f59eaa1e 100644
--- a/app/scodoc/sco_formsemestre_inscriptions.py
+++ b/app/scodoc/sco_formsemestre_inscriptions.py
@@ -210,7 +210,7 @@ def do_formsemestre_desinscription(etudid, formsemestre_id):
 
     if nt.etud_has_decision(etudid):
         raise ScoValueError(
-            """désinscription impossible: l'étudiant {etud.nomprenom} a
+            f"""désinscription impossible: l'étudiant {etud.nomprenom} a
             une décision de jury (la supprimer avant si nécessaire)"""
         )
 
diff --git a/app/templates/sco_value_error.j2 b/app/templates/sco_value_error.j2
index 840d3802..94b60310 100644
--- a/app/templates/sco_value_error.j2
+++ b/app/templates/sco_value_error.j2
@@ -5,7 +5,7 @@
 
 <h2>Erreur !</h2>
 
-{{ exc }}
+{{ exc | safe }}
 
 <p>
     {% if g.scodoc_dept %}