diff --git a/xos/tosca/custom_types/xos.m4 b/xos/tosca/custom_types/xos.m4
index 91dfa81..e37aaf1 100644
--- a/xos/tosca/custom_types/xos.m4
+++ b/xos/tosca/custom_types/xos.m4
@@ -413,6 +413,9 @@
             An ONOS Application.
         properties:
             xos_base_tenant_props
+            install_dependencies:
+                type: string
+                required: false
             dependencies:
                 type: string
                 required: false
diff --git a/xos/tosca/custom_types/xos.yaml b/xos/tosca/custom_types/xos.yaml
index 4510a0f..aa578d0 100644
--- a/xos/tosca/custom_types/xos.yaml
+++ b/xos/tosca/custom_types/xos.yaml
@@ -688,6 +688,9 @@
                 type: string
                 required: false
                 description: Service specific ID opaque to XOS but meaningful to service
+            install_dependencies:
+                type: string
+                required: false
             dependencies:
                 type: string
                 required: false