diff --git a/templates/definition/tariff/ngeso.yaml b/templates/definition/tariff/ngeso.yaml
index b89a45ac6..3de4a2cef 100644
--- a/templates/definition/tariff/ngeso.yaml
+++ b/templates/definition/tariff/ngeso.yaml
@@ -27,4 +27,4 @@ params:
 render: |
   type: ngeso
   region: {{ .region }}
-  postcode: {{ .postcode }}
+  postcode: {{ .postalcode }}