diff --git a/code/API_definitions/carrier_billing_refund.yaml b/code/API_definitions/carrier_billing_refund.yaml
index ad3e7dc..5e35035 100644
--- a/code/API_definitions/carrier_billing_refund.yaml
+++ b/code/API_definitions/carrier_billing_refund.yaml
@@ -282,7 +282,7 @@ paths:
           $ref: "#/components/responses/Generic503"
         "504":
           $ref: "#/components/responses/Generic504"
-  /payments/{paymentId}/refunds/remainingAmount:
+  /payments/{paymentId}/refunds/remaining-amount:
     get:
       security:
         - openId: