diff --git a/app/scodoc/sco_groups_view.py b/app/scodoc/sco_groups_view.py
index 1c73b6bc..8226b49f 100644
--- a/app/scodoc/sco_groups_view.py
+++ b/app/scodoc/sco_groups_view.py
@@ -477,6 +477,9 @@ def groups_table(
             [(p["partition_id"], p["partition_name"]) for p in groups_infos.partitions]
         )
     )
+    partitions_name = {
+        p["partition_id"]: p["partition_name"] for p in groups_infos.partitions
+    }
 
     if format != "html":  # ne mentionne l'état que en Excel (style en html)
         columns_ids.append("etat")
@@ -500,11 +503,7 @@ def groups_table(
     if with_annotations:
         sco_etud.add_annotations_to_etud_list(groups_infos.members)
         columns_ids += ["annotations_str"]
-
-    if groups_infos.formsemestre["semestre_id"] >= 0:
-        moodle_sem_name = "S%d" % groups_infos.formsemestre["semestre_id"]
-    else:
-        moodle_sem_name = "A"  # pas de semestre spécifié, que faire ?
+    moodle_sem_name = groups_infos.formsemestre["session_id"]
     moodle_groupenames = set()
     # ajoute liens
     for etud in groups_infos.members:
@@ -529,23 +528,27 @@ def groups_table(
         # et groupes:
         for partition_id in etud["partitions"]:
             etud[partition_id] = etud["partitions"][partition_id]["group_name"]
-        # Ajoute colonne pour moodle: semestre_groupe, de la forme S1-NomgroupeXXX
+        # Ajoute colonne pour moodle: semestre_groupe, de la forme RT-DUT-FI-S3-2021-PARTITION-GROUPE
         moodle_groupename = []
         if groups_infos.selected_partitions:
             # il y a des groupes selectionnes, utilise leurs partitions
             for partition_id in groups_infos.selected_partitions:
                 if partition_id in etud["partitions"]:
                     moodle_groupename.append(
-                        etud["partitions"][partition_id]["group_name"]
+                        partitions_name[partition_id]
+                        + "-"
+                        + etud["partitions"][partition_id]["group_name"]
                     )
         else:
             # pas de groupes sélectionnés: prend le premier s'il y en a un
+            moodle_groupename = ["tous"]
             if etud["partitions"]:
                 for p in etud["partitions"].items():  # partitions is an OrderedDict
+                    moodle_groupename = [
+                        partitions_name[p[0]] + "-" + p[1]["group_name"]
+                    ]
                     break
-                moodle_groupename = [p[1]["group_name"]]
-            else:
-                moodle_groupename = ["tous"]
+
         moodle_groupenames |= set(moodle_groupename)
         etud["semestre_groupe"] = moodle_sem_name + "-" + "+".join(moodle_groupename)
 
@@ -935,7 +938,7 @@ def form_choix_saisie_semaine(groups_infos, REQUEST=None):
     return "\n".join(FA)
 
 
-def export_groups_as_moodle_csv(formsemestre_id=None, REQUEST=None):
+def export_groups_as_moodle_csv(formsemestre_id=None):
     """Export all students/groups, in a CSV format suitable for Moodle
     Each (student,group) will be listed on a separate line
     jo@univ.fr,S3-A
diff --git a/sco_version.py b/sco_version.py
index a509e44c..be14469e 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.0.25"
+SCOVERSION = "9.0.26"
 
 SCONAME = "ScoDoc"