diff --git a/internal_variables.txt b/internal_variables.txt
index ed9c49b02ca11a8171418049deccfae450141f76..85791f1cda5cc1894890111e2ab98108b3145dc2 100644
--- a/internal_variables.txt
+++ b/internal_variables.txt
@@ -326,6 +326,14 @@ ${NS_InvariantId}
 #${tosca_type_VDU_cp}    tosca.nodes.nfv.VduCp
 #${tosca_type_storage}    tosca.nodes.nfv.Vdu.VirtualBlockStorage
 
+${tosca_type_NS}    tosca.nodes.nfv.NS
+${tosca_type_NsVirtualLink}    tosca.nodes.nfv.NsVirtualLink
+${tosca_type_NsCP}    tosca.nodes.nfv.Cp
+
+${NS_VirtualLink_IDs}
+${NsCP_IDs}
+${SAP_IDs}
+
 #${VDU_IDs}
 #${VNF_IDs}
 #${virtualLink_IDs}