diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index ecc8e4dd7..9d1b44d11 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -824,7 +824,7 @@ def feuille_saisie_notes(context, evaluation_id, group_ids=[], REQUEST=None):
             ]
         )
 
-    filename = "notes_%s_%s.xls" % (evalname, gr_title_filename)
+    filename = "notes_%s_%s.xlsx" % (evalname, gr_title_filename)
     xls = sco_excel.excel_feuille_saisie(E, sem["titreannee"], description, lines=L)
     return sco_excel.send_excel_file(REQUEST, xls, filename)