diff --git a/spec/services/hyrax/collections/nested_collection_persistence_service_spec.rb b/spec/services/hyrax/collections/nested_collection_persistence_service_spec.rb
index 8abab8889f..3815f0bbb7 100644
--- a/spec/services/hyrax/collections/nested_collection_persistence_service_spec.rb
+++ b/spec/services/hyrax/collections/nested_collection_persistence_service_spec.rb
@@ -9,7 +9,7 @@
     it 'creates the relationship between parent and child' do
       subject
       expect(Hyrax.custom_queries.find_parent_collection_ids(resource: child)).to contain_exactly(parent.id)
-      expect(Hyrax.custom_queries.find_child_collection_ids(resource: parent)).to eq [child.id]
+      expect(Hyrax.custom_queries.find_child_collection_ids(resource: parent).to_a).to eq [child.id]
     end
   end
 
@@ -23,7 +23,7 @@
     it 'removes the relationship between parent and child' do
       subject
       expect(Hyrax.custom_queries.find_parent_collection_ids(resource: child)).to be_empty
-      expect(Hyrax.custom_queries.find_child_collection_ids(resource: parent)).to be_empty
+      expect(Hyrax.custom_queries.find_child_collection_ids(resource: parent).to_a).to be_empty
     end
   end
 end