diff --git a/src/metaschema/oscal_component_metaschema.xml b/src/metaschema/oscal_component_metaschema.xml
index 7538794469..92ca6b6bfa 100644
--- a/src/metaschema/oscal_component_metaschema.xml
+++ b/src/metaschema/oscal_component_metaschema.xml
@@ -177,7 +177,7 @@
             &allowed-values-responsible-roles-component-production;
       </allowed-values>
 
-      <allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='asset-type']/@value">
+      <allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='asset-type']/@value" allow-other="yes">
             &allowed-values-property-name-asset-type-values;
       </allowed-values>
 
diff --git a/src/metaschema/oscal_implementation-common_metaschema.xml b/src/metaschema/oscal_implementation-common_metaschema.xml
index be96cc26b2..c8c75ffbc2 100644
--- a/src/metaschema/oscal_implementation-common_metaschema.xml
+++ b/src/metaschema/oscal_implementation-common_metaschema.xml
@@ -120,7 +120,7 @@
             &allowed-values-responsible-roles-component-production;
                   </allowed-values>
 
-                  <allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='asset-type']/@value">
+                  <allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='asset-type']/@value" allow-other="yes">
             &allowed-values-property-name-asset-type-values;
                   </allowed-values>
 
@@ -579,7 +579,7 @@
                         &allowed-values-component_inventory-item_property-name;
 
                   </allowed-values>
-                  <allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='asset-type']/@value">
+                  <allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='asset-type']/@value" allow-other="yes">
                         &allowed-values-property-name-asset-type-values;
                   </allowed-values>