diff --git a/src/antares/model/binding_constraint.py b/src/antares/model/binding_constraint.py
index 6e08f1e8..e5572f22 100644
--- a/src/antares/model/binding_constraint.py
+++ b/src/antares/model/binding_constraint.py
@@ -91,9 +91,6 @@ def generate_id(cls, data: Union[Dict[str, str], LinkData, ClusterData]) -> str:
             return "%".join(sorted((data.area1.lower(), data.area2.lower())))
         return ".".join((data.area.lower(), data.cluster.lower()))
 
-    def serialize_term_data(self) -> Optional[str]:
-        return self.weight_offset()
-
 
 class DefaultBindingConstraintProperties(BaseModel, extra="forbid", populate_by_name=True, alias_generator=to_camel):
     """Default properties for binding constraints
diff --git a/src/antares/service/local_services/binding_constraint_local.py b/src/antares/service/local_services/binding_constraint_local.py
index c2ad7290..96556e3e 100644
--- a/src/antares/service/local_services/binding_constraint_local.py
+++ b/src/antares/service/local_services/binding_constraint_local.py
@@ -123,7 +123,7 @@ def _write_binding_constraint_ini(
         if existing_section:
             existing_terms = current_ini_content[existing_section]
 
-            serialized_terms = {term.id: term.serialize_term_data() for term in terms} if terms else {}
+            serialized_terms = {term.id: term.weight_offset() for term in terms} if terms else {}
 
             existing_terms.update(serialized_terms)  # type: ignore
             current_ini_content[existing_section] = existing_terms