diff --git a/lib/subjects/remover.rb b/lib/subjects/remover.rb
index daaa5167a..b9f544556 100644
--- a/lib/subjects/remover.rb
+++ b/lib/subjects/remover.rb
@@ -60,9 +60,9 @@ def has_been_collected_or_classified?
     end
 
     def belongs_to_other_subject_set?
-      return false if !subject_set_id
+      return false unless subject_set_id != nil
 
-      orphan_subject.set_member_subjects.where.not(subject_set_id: subject_set_id).count > 0
+      orphan_subject.set_member_subjects.where.not(subject_set_id: subject_set_id).count.positive?
     end
 
     def has_been_talked_about?
diff --git a/spec/lib/subjects/remover_spec.rb b/spec/lib/subjects/remover_spec.rb
index 6f84efc26..249a36467 100644
--- a/spec/lib/subjects/remover_spec.rb
+++ b/spec/lib/subjects/remover_spec.rb
@@ -105,11 +105,11 @@
         expect { SetMemberSubject.find(sms_ids) }.to raise_error(ActiveRecord::RecordNotFound)
       end
 
-      context "with multiple subject sets" do
+      context 'with multiple subject sets' do
         let(:alternate_subject_set) { create(:subject_set) }
-        let(:remover) { Subjects::Remover.new(subject.id, panoptes_client, alternate_subject_set.id) }
-        it "should not remove subjects associated with multiple set_member_subjects" do
-          create(:set_member_subject, subject: subject, subject_set: alternate_subject_set)
+        let(:remover) { described_class.new(subject.id, panoptes_client, alternate_subject_set.id) }
+        let(:new_sms) { create(:set_member_subject, subject: subject, subject_set: alternate_subject_set) }
+        it 'should not remove subjects associated with multiple set_member_subjects' do
           remover.cleanup
           expect(Subject.where(id: subject.id)).to exist
         end
diff --git a/spec/workers/subject_removal_worker_spec.rb b/spec/workers/subject_removal_worker_spec.rb
index 4681ba43f..4cc25653d 100644
--- a/spec/workers/subject_removal_worker_spec.rb
+++ b/spec/workers/subject_removal_worker_spec.rb
@@ -18,8 +18,8 @@
 
     def stub_discussions_request(subject_id)
       stub_request(:get, discussions_url)
-        .with(query: { focus_id: subject_id, focus_type: "Subject" })
-        .to_return(status: 200, body: "[]", headers: {})
+        .with(query: { focus_id: subject_id, focus_type: 'Subject' })
+        .to_return(status: 200, body: '[]', headers: {})
     end
 
     before do