diff --git a/spec/lib/object_serializer_spec.rb b/spec/lib/object_serializer_spec.rb
index 7338047..cd6f3aa 100644
--- a/spec/lib/object_serializer_spec.rb
+++ b/spec/lib/object_serializer_spec.rb
@@ -361,13 +361,13 @@ describe FastJsonapi::ObjectSerializer do
     it 'returns optional relationship when relationship is included' do
       json = MovieOptionalRelationshipWithParamsSerializer.new(movie, { params: { admin: true }}).serialized_json
       serializable_hash = JSON.parse(json)
-      expect(serializable_hash['data']['relationships'].has_key?('actors')).to be_truthy
+      expect(serializable_hash['data']['relationships'].has_key?('owner')).to be_truthy
     end
 
     it "doesn't return optional relationship when relationship is not included" do
       json = MovieOptionalRelationshipWithParamsSerializer.new(movie, { params: { admin: false }}).serialized_json
       serializable_hash = JSON.parse(json)
-      expect(serializable_hash['data']['relationships'].has_key?('actors')).to be_falsey
+      expect(serializable_hash['data']['relationships'].has_key?('owner')).to be_falsey
     end
   end
 end
diff --git a/spec/shared/contexts/movie_context.rb b/spec/shared/contexts/movie_context.rb
index 6a5693e..bbd89a9 100644
--- a/spec/shared/contexts/movie_context.rb
+++ b/spec/shared/contexts/movie_context.rb
@@ -304,7 +304,7 @@ RSpec.shared_context 'movie class' do
       include FastJsonapi::ObjectSerializer
       set_type :movie
       attributes :name
-      has_many :actors, if: Proc.new { |record, params| params && params[:admin] == true }
+      belongs_to :owner, record_type: :user, if: Proc.new { |record, params| params && params[:admin] == true }
     end
   end