lib/asciidoctor/gb/isostandard.rng in asciidoctor-gb-0.3.2 vs lib/asciidoctor/gb/isostandard.rng in asciidoctor-gb-0.3.3

@@ -802,10 +802,10 @@
       <optional>
         <attribute name="subpart">
           <data type="int"/>
         </attribute>
       </optional>
-      <data type="int"/>
+      <text/>
     </element>
   </define>
   <define name="tc-documentnumber">
     <element name="tc-document-number">
       <data type="int"/>