diff --git a/app/models/etudiants.py b/app/models/etudiants.py
index 30e42d25b..87ce6163e 100644
--- a/app/models/etudiants.py
+++ b/app/models/etudiants.py
@@ -405,6 +405,18 @@ class Identite(models.ScoDocModel):
             modimpls_by_formsemestre[formsemestre.id] = modimpls_sem
         return modimpls_by_formsemestre
 
+    def get_modimpls_from_formsemestre(
+        self, formsemestre: "FormSemestre"
+    ) -> list["ModuleImpl"]:
+        """
+        Liste des ModuleImpl auxquels l'étudiant est inscrit dans le formsemestre.
+        """
+        modimpls = ModuleImpl.query.join(ModuleImplInscription).filter(
+            ModuleImplInscription.etudid == self.id,
+            ModuleImpl.formsemestre_id == formsemestre.id,
+        )
+        return modimpls.all()
+
     @classmethod
     def convert_dict_fields(cls, args: dict) -> dict:
         """Convert fields in the given dict. No other side effect.
diff --git a/app/views/assiduites.py b/app/views/assiduites.py
index 21f39f8c3..f053a5f5b 100644
--- a/app/views/assiduites.py
+++ b/app/views/assiduites.py
@@ -2168,17 +2168,19 @@ def edit_assiduite_etud(assiduite_id: int):
         form.disable_all()
 
     # peuplement moduleimpl_select
-    modimpls_by_formsemestre = etud.get_modimpls_by_formsemestre(scu.annee_scolaire())
     choices: OrderedDict = OrderedDict()
     choices[""] = [("", "Non spécifié"), ("autre", "Autre module (pas dans la liste)")]
 
-    # indique le nom du semestre dans le menu (optgroup)
-    group_name: str = formsemestre.titre_annee()
-    choices[group_name] = [
-        (m.id, f"{m.module.code} {m.module.abbrev or m.module.titre or ''}")
-        for m in modimpls_by_formsemestre[formsemestre.id]
-        if m.module.ue.type == UE_STANDARD
-    ]
+    # Récupération des modulesimpl du semestre si existant.
+    if formsemestre:
+        # indique le nom du semestre dans le menu (optgroup)
+        modimpls_from_formsemestre = etud.get_modimpls_from_formsemestre(formsemestre)
+        group_name: str = formsemestre.titre_annee()
+        choices[group_name] = [
+            (m.id, f"{m.module.code} {m.module.abbrev or m.module.titre or ''}")
+            for m in modimpls_from_formsemestre
+            if m.module.ue.type == UE_STANDARD
+        ]
 
     choices.move_to_end("", last=False)
     form.modimpl.choices = choices