diff --git a/app/scodoc/sco_formations.py b/app/scodoc/sco_formations.py
index 5e4f0ab69..8aa7c72c2 100644
--- a/app/scodoc/sco_formations.py
+++ b/app/scodoc/sco_formations.py
@@ -93,12 +93,21 @@ def formation_has_locked_sems(formation_id):
     return sems
 
 
-def formation_export(formation_id, export_ids=False, export_tags=True, format=None):
+def formation_export(
+    formation_id,
+    export_ids=False,
+    export_tags=True,
+    export_external_ues=False,
+    format=None,
+):
     """Get a formation, with UE, matieres, modules
     in desired format
     """
     F = formation_list(args={"formation_id": formation_id})[0]
-    ues = sco_edit_ue.ue_list({"formation_id": formation_id})
+    selector = {"formation_id": formation_id}
+    if not export_external_ues:
+        selector["is_external"] = False
+    ues = sco_edit_ue.ue_list(selector)
     F["ue"] = ues
     for ue in ues:
         ue_id = ue["ue_id"]