diff --git a/src/vnfd/ref12_vnf/ref12_vnfd.yaml b/src/vnfd/ref12_vnf/ref12_vnfd.yaml
index 590d4e4..2901c4a 100644
--- a/src/vnfd/ref12_vnf/ref12_vnfd.yaml
+++ b/src/vnfd/ref12_vnf/ref12_vnfd.yaml
@@ -20,7 +20,7 @@
             vendor: ETSI
             internal-connection-point:
             -   id-ref: 'iface31'
-                id-ref: 'iface41'
+            -   id-ref: 'iface41'
         vdu:
         -   description: Middlepoint
             external-interface: