Make class optional on application

diff --git a/docbook/relaxng/src/pool.rnc b/docbook/relaxng/src/pool.rnc
index 03a8d049b8ce3f5b30457d2fd7407ba62c383681..2c191f59dab23006a2edd8c57c3d37a79fd162ff 100644 (file)
--- a/docbook/relaxng/src/pool.rnc
+++ b/docbook/relaxng/src/pool.rnc
@@ -5074,7 +5074,7 @@ div {
       application.role.attribute?
     & common.attributes
     & common.linking.attributes
-    & application.class.attribute
+    & application.class.attribute?
     & local.application.attributes
 
    db.application =