diff --git a/odk/odk.py b/odk/odk.py
index 7c6f04b0..2f873d1a 100755
--- a/odk/odk.py
+++ b/odk/odk.py
@@ -622,9 +622,12 @@ class OntologyProject(JsonSchemaMixin):
     robot_report : Dict[str, Any] = field(default_factory=lambda: ReportConfig().to_dict())
     """Block that includes settings for ROBOT report, ROBOT verify and additional reports that are generated"""
 
-    ensure_valid_rdfxml : bool = False
+    ensure_valid_rdfxml : bool = True
     """When enabled, ensure that any RDF/XML product file is valid"""
 
+    extra_rdfxml_checks : bool = False
+    """When enabled, RDF/XML product files are checked against additional parsers"""
+
     # product groups
     import_group : Optional[ImportGroup] = None
     """Block that includes information on all ontology imports to be generated"""
diff --git a/scripts/check-rdfxml.sh b/scripts/check-rdfxml.sh
index 054ae334..7a8998a8 100644
--- a/scripts/check-rdfxml.sh
+++ b/scripts/check-rdfxml.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/bash
 
-check_lightrdf=0
-check_rdflib=1
-check_jena=1
+check_lightrdf=1
+check_rdflib=0
+check_jena=0
 rdfxml_file=
 
 while [ -n "$1" ]; do
diff --git a/template/src/ontology/Makefile.jinja2 b/template/src/ontology/Makefile.jinja2
index d990caa8..da939959 100644
--- a/template/src/ontology/Makefile.jinja2
+++ b/template/src/ontology/Makefile.jinja2
@@ -285,7 +285,7 @@ show_assets:
 	du -sh $(ASSETS)
 
 check_rdfxml_%: %
-	@check-rdfxml $<
+	@check-rdfxml {% if project.extra_rdfxml_checks %}--jena --rdflib{% endif %} $<
 
 .PHONY: check_rdfxml_assets
 check_rdfxml_assets: $(foreach product,$(MAIN_PRODUCTS),check_rdfxml_$(product).owl)