diff --git a/trytond/ir/ui/form.rnc b/trytond/ir/ui/form.rnc
index 9d1b385245..ccdda4fae0 100644
--- a/trytond/ir/ui/form.rnc
+++ b/trytond/ir/ui/form.rnc
@@ -183,6 +183,8 @@ attlist.page &= attribute angle { text }?
 attlist.page &=
   [ a:defaultValue = "Unknown" ] attribute string { text }?
 attlist.page &= [ a:defaultValue = "4" ] attribute col { text }?
+attlist.page &= attribute name { text }?
+attlist.page &= attribute states { text }?
 group =
   element group {
     attlist.group,
diff --git a/trytond/ir/ui/form.rng b/trytond/ir/ui/form.rng
index 206ab3c750..666f820178 100644
--- a/trytond/ir/ui/form.rng
+++ b/trytond/ir/ui/form.rng
@@ -666,6 +666,16 @@
       <attribute name="col" a:defaultValue="4"/>
     </optional>
   </define>
+  <define name="attlist.page" combine="interleave">
+    <optional>
+      <attribute name="name"/>
+    </optional>
+  </define>
+  <define name="attlist.page" combine="interleave">
+    <optional>
+      <attribute name="states"/>
+    </optional>
+  </define>
   <define name="group">
     <element name="group">
       <ref name="attlist.group"/>