diff --git a/sco_bulletins.py b/sco_bulletins.py
index 194229e74..96f784e36 100644
--- a/sco_bulletins.py
+++ b/sco_bulletins.py
@@ -524,7 +524,7 @@ def _ue_mod_bulletin(context, etudid, formsemestre_id, ue_id, modimpls, nt, vers
                 if val == "NP":
                     e["note_txt"] = "nd"
                     e["note_html"] = '<span class="note_nd">nd</span>'
-                    e["coef_txt"] = ""
+                    e["coef_txt"] = fmt_coef(e["coefficient"])
                 else:
                     # (-0.15) s'affiche "bonus de 0.15"
                     if is_malus: