diff --git a/src/metaschema/shared-constraints/allowed-values-component_inventory-item_property-name.ent b/src/metaschema/shared-constraints/allowed-values-component_inventory-item_property-name.ent
index cf26a06ffe..053e1a582d 100644
--- a/src/metaschema/shared-constraints/allowed-values-component_inventory-item_property-name.ent
+++ b/src/metaschema/shared-constraints/allowed-values-component_inventory-item_property-name.ent
@@ -11,3 +11,4 @@
 <enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="baseline-configuration-name">The name of the baseline configuration for the asset.</enum>
 <enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="allows-authenticated-scan">Can the asset be check with an authenticated scan? (yes/no)</enum>
 <enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="function">The function provided by the asset for the system.</enum>
+<enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="direction">An Internet Protocol Version 6 interconnection address.</enum>