diff --git a/app/but/bulletin_but_pdf.py b/app/but/bulletin_but_pdf.py
index 481ac415..526465f5 100644
--- a/app/but/bulletin_but_pdf.py
+++ b/app/but/bulletin_but_pdf.py
@@ -195,10 +195,18 @@ class BulletinGeneratorStandardBUT(BulletinGeneratorStandard):
             ects_txt = ""
         # case Bonus/Malus/Rang "bmr"
         fields_bmr = []
-        if float(ue["bonus"]) != 0:
-            fields_bmr.append(f"Bonus: {ue['bonus']}")
-        if float(ue["malus"]) != 0:
-            fields_bmr.append(f"Malus: {ue['malus']}")
+        try:
+            value = float(ue["bonus"])
+            if value != 0:
+                fields_bmr.append(f"Bonus: {ue['bonus']}")
+        except ValueError:
+            pass
+        try:
+            value = float(ue["malus"])
+            if value != 0:
+                fields_bmr.append(f"Malus: {ue['malus']}")
+        except ValueError:
+            pass
         if self.preferences["bul_show_ue_rangs"]:
             fields_bmr.append(
                 f"Rang: {ue['moyenne']['rang']} / {ue['moyenne']['total']}"
diff --git a/sco_version.py b/sco_version.py
index 1ea3e57a..ed1190cd 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.3.39"
+SCOVERSION = "9.3.40"
 
 SCONAME = "ScoDoc"