diff --git a/xml/rule-3.5.rng b/xml/rule-3.5.rng
index 5d1daf0ddc..82be4d6ed7 100644
--- a/xml/rule-3.5.rng
+++ b/xml/rule-3.5.rng
@@ -1,165 +1,166 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <grammar xmlns="http://relaxng.org/ns/structure/1.0" 
          xmlns:ann="http://relaxng.org/ns/compatibility/annotations/1.0"
          datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
   <start>
       <ref name="element-rule"/>
   </start>
 
   <define name="element-rule">
     <element name="rule">
      <choice>
      <attribute name="id-ref"><data type="IDREF"/></attribute>
      <group>
       <attribute name="id"><data type="ID"/></attribute>
       <choice>
         <externalRef href="score.rng"/>
         <attribute name="score-attribute"><text/></attribute>
       </choice>
       <optional>
         <attribute name="boolean-op">
           <choice>
             <value>or</value>
             <value>and</value>
           </choice>
         </attribute>
       </optional>
       <optional>
         <attribute name="role"><text/></attribute>
       </optional>
       <oneOrMore>
         <choice>
           <element name="expression">
             <attribute name="id"><data type="ID"/></attribute>
             <attribute name="attribute"><text/></attribute>
             <attribute name="operation">
               <choice>
                 <value>lt</value>
                 <value>gt</value>
                 <value>lte</value>
                 <value>gte</value>
                 <value>eq</value>
                 <value>ne</value>
                 <value>defined</value>
                 <value>not_defined</value>
               </choice>
             </attribute>
             <optional>
               <attribute name="value"><text/></attribute>
             </optional>
             <optional>
               <attribute name="type" ann:defaultValue="string">
                 <choice>
                   <value>string</value>
+                  <value>integer</value>
                   <value>number</value>
                   <value>version</value>
                 </choice>
               </attribute>
             </optional>
             <optional>
               <attribute name="value-source" ann:defaultValue="literal">
                 <choice>
                   <value>literal</value>
                   <value>param</value>
                   <value>meta</value>
                 </choice>
               </attribute>
             </optional>
           </element>
           <element name="date_expression">
             <attribute name="id"><data type="ID"/></attribute>
             <choice>
               <group>
                 <attribute name="operation"><value>in_range</value></attribute>
                 <choice>
                   <group>
                     <optional>
                       <attribute name="start"><text/></attribute>
                     </optional>
                     <attribute name="end"><text/></attribute>
                   </group>
                   <group>
                     <attribute name="start"><text/></attribute>
                     <element name="duration">
                       <ref name="date-common"/>
                     </element>
                   </group>
                 </choice>
               </group>
               <group>
                 <attribute name="operation"><value>gt</value></attribute>
                 <attribute name="start"><text/></attribute>
               </group>
               <group>
                 <attribute name="operation"><value>lt</value></attribute>
                 <choice>
                   <attribute name="end"><text/></attribute>
                 </choice>
               </group>
               <group>
                 <attribute name="operation"><value>date_spec</value></attribute>
                 <element name="date_spec">
                   <ref name="date-common"/>
                 </element> 
               </group>
             </choice>
           </element> 
           <element name="rsc_expression">
             <attribute name="id"><data type="ID"/></attribute>
             <optional>
               <attribute name="class"><text/></attribute>
             </optional>
             <optional>
               <attribute name="provider"><text/></attribute>
             </optional>
             <optional>
               <attribute name="type"><text/></attribute>
             </optional>
           </element>
           <element name="op_expression">
             <attribute name="id"><data type="ID"/></attribute>
             <attribute name="name"><text/></attribute>
             <optional>
               <attribute name="interval"><text/></attribute>
             </optional>
           </element>
           <ref name="element-rule"/>
         </choice>
       </oneOrMore>
      </group>
      </choice>
     </element>
   </define>
 
   <define name="date-common">
     <attribute name="id"><data type="ID"/></attribute>
     <optional>
       <attribute name="hours"><text/></attribute>
     </optional>
     <optional>
       <attribute name="monthdays"><text/></attribute>
     </optional>
     <optional>
       <attribute name="weekdays"><text/></attribute>
     </optional>
     <optional>
       <attribute name="yearsdays"><text/></attribute>
     </optional>
     <optional>
       <attribute name="months"><text/></attribute>
     </optional>
     <optional>
       <attribute name="weeks"><text/></attribute>
     </optional>
     <optional>
       <attribute name="years"><text/></attribute>
     </optional>
     <optional>
       <attribute name="weekyears"><text/></attribute>
     </optional>
     <optional>
       <attribute name="moon"><text/></attribute>
     </optional>
   </define>
 
 </grammar>