diff --git a/trytond/ir/ui/board.rnc b/trytond/ir/ui/board.rnc
index 7ddc22e518..06662802c0 100644
--- a/trytond/ir/ui/board.rnc
+++ b/trytond/ir/ui/board.rnc
@@ -142,6 +142,7 @@ attlist.xpath &= attribute expr { text }
 attlist.xpath &=
   [ a:defaultValue = "inside" ]
   attribute position { "inside" | "replace" | "replace_attributes" | "after" | "before" }?
-action |= notAllowed
+action = element action { attlist.action, empty }
+attlist.action &= attribute name { text }
 label |= notAllowed
 start = data | board | label
diff --git a/trytond/ir/ui/board.rng b/trytond/ir/ui/board.rng
index 066ddca0ac..a0c90e3b8d 100644
--- a/trytond/ir/ui/board.rng
+++ b/trytond/ir/ui/board.rng
@@ -438,8 +438,14 @@
       </attribute>
     </optional>
   </define>
-  <define name="action" combine="choice">
-    <notAllowed/>
+  <define name="action">
+    <element name="action">
+      <ref name="attlist.action"/>
+      <empty/>
+    </element>
+  </define>
+  <define name="attlist.action" combine="interleave">
+    <attribute name="name"/>
   </define>
   <define name="label" combine="choice">
     <notAllowed/>