diff --git a/specifications/xslt-40/src/schema-for-xslt40.rnc b/specifications/xslt-40/src/schema-for-xslt40.rnc
index b86e02ce9..8bbc2fa60 100644
--- a/specifications/xslt-40/src/schema-for-xslt40.rnc
+++ b/specifications/xslt-40/src/schema-for-xslt40.rnc
@@ -1127,6 +1127,9 @@ map.element =
       global.atts,
       sequence-constructor.model
    }
+# TODO: add @on-duplicates
+# TODO: add @ordering
+
 map-entry.element =
    element map-entry {
       extension.atts,
diff --git a/specifications/xslt-40/src/schema-for-xslt40.xsd b/specifications/xslt-40/src/schema-for-xslt40.xsd
index 8e1f257ee..d2a82c3af 100644
--- a/specifications/xslt-40/src/schema-for-xslt40.xsd
+++ b/specifications/xslt-40/src/schema-for-xslt40.xsd
@@ -1143,7 +1143,9 @@ of problems processing the schema using various tools
       <xs:complexContent mixed="true">
         <xs:extension base="xsl:sequence-constructor">
           <xs:attribute name="on-duplicates" type="xsl:expression"/>
+          <xs:attribute name="ordering" type="xsl:avt"/>
           <xs:attribute name="_on-duplicates" type="xs:string"/>
+          <xs:attribute name="_ordering" type="xs:string"/>
         </xs:extension>
       </xs:complexContent>
     </xs:complexType>