diff --git a/app/models/validations.py b/app/models/validations.py
index e54bc628..a9a3ad2b 100644
--- a/app/models/validations.py
+++ b/app/models/validations.py
@@ -116,7 +116,7 @@ class ScolarFormSemestreValidation(db.Model):
                   if self.ue.parcours else ""}
                 {("émise par " + link)}
                 : <b>{self.code}</b>{moyenne}
-                <b>{self.ue.ects:g} ECTS</b>
+                <b>{(self.ue.ects or 0):g} ECTS</b>
                 le {self.event_date.strftime(scu.DATEATIME_FMT)}
                 """
         else: