diff --git a/app/scodoc/sco_formsemestre_status.py b/app/scodoc/sco_formsemestre_status.py
index 3d4b2d43c..0d04b9ac7 100755
--- a/app/scodoc/sco_formsemestre_status.py
+++ b/app/scodoc/sco_formsemestre_status.py
@@ -1418,13 +1418,14 @@ def get_formsemestre_etudids_sans_notes(
     )
     if not nb_notes_sem:
         return set()
-    etudids_sans_notes = set.intersection(
-        *[
-            set.intersection(*m_res.evals_etudids_sans_note.values())
-            for m_res in res.modimpls_results.values()
-            if m_res.evals_etudids_sans_note
-        ]
-    )
+    notes_modimpls = [
+        set.intersection(*m_res.evals_etudids_sans_note.values())
+        for m_res in res.modimpls_results.values()
+        if m_res.evals_etudids_sans_note
+    ]
+    if not notes_modimpls:
+        return set()
+    etudids_sans_notes = set.intersection(*notes_modimpls)
     nb_sans_notes = len(etudids_sans_notes)
     if nb_sans_notes > 0 and nb_sans_notes < len(
         formsemestre.get_inscrits(include_demdef=False)