diff --git a/xml/acls-1.1.rng b/xml/acls-1.1.rng
index 3eaa12f406..fb7b3abd38 100644
--- a/xml/acls-1.1.rng
+++ b/xml/acls-1.1.rng
@@ -1,66 +1,66 @@
 <?xml version="1.0" encoding="utf-8"?>
 <grammar xmlns="http://relaxng.org/ns/structure/1.0" 
          datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
   <start>
       <ref name="element-acls"/>
   </start>
 
   <define name="element-acls">
     <element name="acls">
       <zeroOrMore>
 	<choice>
 	  <element name="acl_user">
-	    <attribute name="id"><text/></attribute>
+	    <attribute name="id"><data type="ID"/></attribute>
 	    <choice>
 	      <zeroOrMore>
  		<element name="role_ref">
 		  <attribute name="id"><data type="IDREF"/></attribute>
 		</element>
 	      </zeroOrMore>
 	      <zeroOrMore>
 		<ref name="element-acl"/>
 	      </zeroOrMore>
 	    </choice>
 	  </element>
 	  <element name="acl_role">
 	    <attribute name="id"><data type="ID"/></attribute>
 	    <zeroOrMore>
 	      <ref name="element-acl"/>
 	    </zeroOrMore>
 	  </element>
 	</choice>
       </zeroOrMore>
     </element>
   </define>
 
   <define name="element-acl">
     <choice>
       <element name="read">
 	<ref name="attribute-acl"/>
       </element>
       <element name="write">
 	<ref name="attribute-acl"/>
       </element>
       <element name="deny">
 	<ref name="attribute-acl"/>
       </element>
     </choice>
   </define>
 
   <define name="attribute-acl">
     <attribute name="id"><data type="ID"/></attribute>
       <choice>
 	<attribute name="tag"><text/></attribute>
 	<attribute name="ref"><data type="IDREF"/></attribute>
 	<group>
 	  <attribute name="tag"><text/></attribute>
 	  <attribute name="ref"><data type="IDREF"/></attribute>
 	</group>
 	<attribute name="xpath"><text/></attribute>
       </choice>
       <optional>
 	<attribute name="attribute"><text/></attribute>
       </optional>
   </define>
 
 </grammar>
diff --git a/xml/acls-1.2.rng b/xml/acls-1.2.rng
index 3eaa12f406..fb7b3abd38 100644
--- a/xml/acls-1.2.rng
+++ b/xml/acls-1.2.rng
@@ -1,66 +1,66 @@
 <?xml version="1.0" encoding="utf-8"?>
 <grammar xmlns="http://relaxng.org/ns/structure/1.0" 
          datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
   <start>
       <ref name="element-acls"/>
   </start>
 
   <define name="element-acls">
     <element name="acls">
       <zeroOrMore>
 	<choice>
 	  <element name="acl_user">
-	    <attribute name="id"><text/></attribute>
+	    <attribute name="id"><data type="ID"/></attribute>
 	    <choice>
 	      <zeroOrMore>
  		<element name="role_ref">
 		  <attribute name="id"><data type="IDREF"/></attribute>
 		</element>
 	      </zeroOrMore>
 	      <zeroOrMore>
 		<ref name="element-acl"/>
 	      </zeroOrMore>
 	    </choice>
 	  </element>
 	  <element name="acl_role">
 	    <attribute name="id"><data type="ID"/></attribute>
 	    <zeroOrMore>
 	      <ref name="element-acl"/>
 	    </zeroOrMore>
 	  </element>
 	</choice>
       </zeroOrMore>
     </element>
   </define>
 
   <define name="element-acl">
     <choice>
       <element name="read">
 	<ref name="attribute-acl"/>
       </element>
       <element name="write">
 	<ref name="attribute-acl"/>
       </element>
       <element name="deny">
 	<ref name="attribute-acl"/>
       </element>
     </choice>
   </define>
 
   <define name="attribute-acl">
     <attribute name="id"><data type="ID"/></attribute>
       <choice>
 	<attribute name="tag"><text/></attribute>
 	<attribute name="ref"><data type="IDREF"/></attribute>
 	<group>
 	  <attribute name="tag"><text/></attribute>
 	  <attribute name="ref"><data type="IDREF"/></attribute>
 	</group>
 	<attribute name="xpath"><text/></attribute>
       </choice>
       <optional>
 	<attribute name="attribute"><text/></attribute>
       </optional>
   </define>
 
 </grammar>