diff --git a/app/but/bulletin_but_xml_compat.py b/app/but/bulletin_but_xml_compat.py
index 69b8f568..db2b18c1 100644
--- a/app/but/bulletin_but_xml_compat.py
+++ b/app/but/bulletin_but_xml_compat.py
@@ -175,7 +175,7 @@ def bulletin_but_xml_compat(
             x_ue.append(Element("rang", value=str(rang_ue)))
             x_ue.append(Element("effectif", value=str(nb_inscrits_ue)))
             # Liste les modules rattachés à cette UE
-            for modimpl in results.modimpls:
+            for modimpl in results.formsemestre.modimpls:
                 # Liste ici uniquement les modules rattachés à cette UE
                 if modimpl.module.ue.id == ue.id:
                     # mod_moy = scu.fmt_note(results.etud_moy_ue[ue.id][etud.id])
diff --git a/app/scodoc/sco_bulletins_json.py b/app/scodoc/sco_bulletins_json.py
index f25cdfcf..dbf4a8dc 100644
--- a/app/scodoc/sco_bulletins_json.py
+++ b/app/scodoc/sco_bulletins_json.py
@@ -254,7 +254,10 @@ def formsemestre_bulletinetud_published_dict(
                 m["note"][k] = scu.fmt_note(m["note"][k])
 
             u["module"].append(m)
-            if sco_preferences.get_preference("bul_show_mod_rangs", formsemestre_id):
+            if (
+                sco_preferences.get_preference("bul_show_mod_rangs", formsemestre_id)
+                and nt.mod_rangs is not None
+            ):
                 m["rang"] = dict(
                     value=nt.mod_rangs[modimpl["moduleimpl_id"]][0][etudid]
                 )
diff --git a/app/scodoc/sco_bulletins_xml.py b/app/scodoc/sco_bulletins_xml.py
index fda6869c..8133501b 100644
--- a/app/scodoc/sco_bulletins_xml.py
+++ b/app/scodoc/sco_bulletins_xml.py
@@ -271,7 +271,10 @@ def make_xml_formsemestre_bulletinetud(
                     moy=scu.fmt_note(modstat["moy"]),
                 )
             )
-            if sco_preferences.get_preference("bul_show_mod_rangs", formsemestre_id):
+            if (
+                sco_preferences.get_preference("bul_show_mod_rangs", formsemestre_id)
+                and nt.mod_rangs is not None
+            ):
                 x_mod.append(
                     Element(
                         "rang",
diff --git a/app/scodoc/sco_utils.py b/app/scodoc/sco_utils.py
index 360eee97..1cc6e89c 100644
--- a/app/scodoc/sco_utils.py
+++ b/app/scodoc/sco_utils.py
@@ -227,7 +227,10 @@ def get_mention(moy):
         moy = float(moy)
     except:
         return ""
-    return NOTES_MENTIONS_LABS[bisect.bisect_right(NOTES_MENTIONS_TH, moy)]
+    if moy > 0.0:
+        return NOTES_MENTIONS_LABS[bisect.bisect_right(NOTES_MENTIONS_TH, moy)]
+    else:
+        return ""
 
 
 class DictDefault(dict):  # obsolete, use collections.defaultdict