diff --git a/src/plugins/operators/validate_manifest_schema.py b/src/plugins/operators/validate_manifest_schema.py
index ca5e7488e6caccb1681d79a227cb3d8d92316b3a..e518ffe79cfd1c5d7661a550772fce0f171c06a1 100644
--- a/src/plugins/operators/validate_manifest_schema.py
+++ b/src/plugins/operators/validate_manifest_schema.py
@@ -41,7 +41,7 @@ class ValidateManifestSchemaOperator(BaseOperator, ReceivingContextMixin):
         """Init base operator and obtain base urls from Airflow Variables."""
         super().__init__(*args, **kwargs)
         self.previous_task_id = previous_task_id
-        self.schema_service_url = Variable.get('schema_service_url')
+        self.schema_service_url = Variable.get('core.service.schema.url')
 
     def execute(self, context: dict):
         """Execute manifest validation then process it.