diff --git a/lib/seek/bio_schema/resource_decorators/workflow.rb b/lib/seek/bio_schema/resource_decorators/workflow.rb
index 9e104005b3..971a990aa2 100644
--- a/lib/seek/bio_schema/resource_decorators/workflow.rb
+++ b/lib/seek/bio_schema/resource_decorators/workflow.rb
@@ -35,7 +35,7 @@ def schema_type
         end
 
         def programming_language
-          resource.workflow_class&.extractor_class.ro_crate_metadata
+          resource.workflow_class&.ro_crate_metadata
         end
 
         def inputs