diff --git a/models/scop_cotisation_cg.py b/models/scop_cotisation_cg.py
index b0681c4527afbbdd566990cda397711e7480daff..c4f1bf174542e5e651a47f8209979c3eccb6f86d 100644
--- a/models/scop_cotisation_cg.py
+++ b/models/scop_cotisation_cg.py
@@ -539,7 +539,7 @@ class ScopCotisation(models.Model):
             contrib_cg = (
                 self.round_to_closest_multiple(liasse.contribution_cg, 4)
                 if liasse
-                else 300
+                else liasse.get_values_for_cotiz_cg(m).get("plancher1")
             )
             contribution_amount = contrib_cg
             contribution_name = type_cotisation_cg.name