diff --git a/lib/bulkrax.rb b/lib/bulkrax.rb
index f6af63ee..1fd9a95f 100644
--- a/lib/bulkrax.rb
+++ b/lib/bulkrax.rb
@@ -92,7 +92,7 @@ def factory_class_name_coercer
     end
 
     def collection_model_class
-      @collection_model_class ||= Collection
+      @collection_model_class ||= Collection if defined?(::Hyrax)
     end
 
     attr_writer :collection_model_class