diff --git a/app/scodoc/sco_utils.py b/app/scodoc/sco_utils.py
index ff91c149..c1e7dca2 100644
--- a/app/scodoc/sco_utils.py
+++ b/app/scodoc/sco_utils.py
@@ -191,7 +191,7 @@ def fmt_note(val, note_max=None, keep_numeric=False):
         return "EXC"  # excuse, note neutralise
     if val == NOTES_ATTENTE:
         return "ATT"  # attente, note neutralisee
-    if isinstance(val, float) or isinstance(val, int):
+    if not isinstance(val, str):
         if np.isnan(val):
             return "~"
         if (note_max is not None) and note_max > 0: