diff --git a/spec/lib/gitlab/background_migration/delete_diff_files_spec.rb b/spec/lib/gitlab/background_migration/delete_diff_files_spec.rb
index 64c994a268f..1969aed51da 100644
--- a/spec/lib/gitlab/background_migration/delete_diff_files_spec.rb
+++ b/spec/lib/gitlab/background_migration/delete_diff_files_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::BackgroundMigration::DeleteDiffFiles, :migration, schema: 20180619121030 do
+describe Gitlab::BackgroundMigration::DeleteDiffFiles, :migration, :sidekiq, schema: 20180619121030 do
   describe '#perform' do
     context 'when diff files can be deleted' do
       let(:merge_request) { create(:merge_request, :merged) }
diff --git a/spec/lib/gitlab/background_migration/schedule_diff_files_deletion_spec.rb b/spec/lib/gitlab/background_migration/schedule_diff_files_deletion_spec.rb
index fb5093b0bd1..ec8ba0ce127 100644
--- a/spec/lib/gitlab/background_migration/schedule_diff_files_deletion_spec.rb
+++ b/spec/lib/gitlab/background_migration/schedule_diff_files_deletion_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe Gitlab::BackgroundMigration::ScheduleDiffFilesDeletion, :migration, schema: 20180619121030 do
+describe Gitlab::BackgroundMigration::ScheduleDiffFilesDeletion, :migration, :sidekiq, schema: 20180619121030 do
   describe '#perform' do
     let(:merge_request_diffs) { table(:merge_request_diffs) }
     let(:merge_requests) { table(:merge_requests) }