diff --git a/app/formations/edit_module.py b/app/formations/edit_module.py
index 6fe09e8fc..d6a3e8245 100644
--- a/app/formations/edit_module.py
+++ b/app/formations/edit_module.py
@@ -215,7 +215,7 @@ def module_edit(
         ]
         mat_names = [f"S{mat.ue.semestre_idx} / {mat.ue.acronyme}" for mat in matieres]
     else:
-        mat_names = ["{mat.ue.acronyme} / {mat.titre or ''}" for mat in matieres]
+        mat_names = [f"{mat.ue.acronyme} / {mat.titre or ''}" for mat in matieres]
 
     if module:  # edition
         ue_mat_ids = [f"{mat.ue.id}!{mat.id}" for mat in matieres]