diff --git a/app/comp/moy_ue.py b/app/comp/moy_ue.py
index 30d8466b..071d72e8 100644
--- a/app/comp/moy_ue.py
+++ b/app/comp/moy_ue.py
@@ -394,7 +394,10 @@ def compute_ue_moys_classic(
     if sco_preferences.get_preference("use_ue_coefs", formsemestre.id):
         # Cas avec coefficients d'UE forcés: (on met à zéro l'UE bonus)
         etud_coef_ue_df = pd.DataFrame(
-            {ue.id: ue.coefficient if ue.type != UE_SPORT else 0.0 for ue in ues},
+            {
+                ue.id: (ue.coefficient or 0.0) if ue.type != UE_SPORT else 0.0
+                for ue in ues
+            },
             index=modimpl_inscr_df.index,
             columns=[ue.id for ue in ues],
         )
diff --git a/app/scodoc/sco_formsemestre_status.py b/app/scodoc/sco_formsemestre_status.py
index 2e572ea3..d375a47d 100755
--- a/app/scodoc/sco_formsemestre_status.py
+++ b/app/scodoc/sco_formsemestre_status.py
@@ -50,6 +50,7 @@ from app.models import (
     ModuleImpl,
     NotesNotes,
 )
+from app.scodoc.codes_cursus import UE_SPORT
 import app.scodoc.sco_utils as scu
 from app.scodoc.sco_utils import ModuleType
 from app.scodoc.sco_permissions import Permission
@@ -60,7 +61,6 @@ from app.scodoc.sco_exceptions import (
 )
 from app.scodoc import html_sco_header
 from app.scodoc import htmlutils
-from app.scodoc import sco_abs
 from app.scodoc import sco_archives
 from app.scodoc import sco_bulletins
 from app.scodoc import codes_cursus
@@ -660,9 +660,11 @@ def formsemestre_description_table(
                 "Module": ue.titre,
                 "_css_row_class": "table_row_ue",
             }
-            if use_ue_coefs:
-                ue_info["Coef."] = ue.coefficient
-                ue_info["Coef._class"] = "ue_coef"
+            if use_ue_coefs and ue.type != UE_SPORT:
+                ue_info["Coef."] = ue.coefficient or "0."
+                ue_info["_Coef._class"] = "ue_coef"
+                if not ue.coefficient:
+                    ue_info["_Coef._class"] += " ue_coef_nul"
             if ue.color:
                 for k in list(ue_info.keys()):
                     if not k.startswith("_"):
diff --git a/app/static/css/scodoc.css b/app/static/css/scodoc.css
index df293cf7..92d00c37 100644
--- a/app/static/css/scodoc.css
+++ b/app/static/css/scodoc.css
@@ -2472,6 +2472,12 @@ span.ue_type {
   margin-right: 1.5em;
 }
 
+table.formsemestre_description td.ue_coef_nul {
+  background-color: yellow!important;
+  color: red;
+  font-weight: bold;
+}
+
 ul.notes_module_list span.ue_coefs_list {
   color: blue;
   font-size: 70%;