diff --git a/app/services/issuable_base_service.rb b/app/services/issuable_base_service.rb
index 1f59281e271..2b16089df1b 100644
--- a/app/services/issuable_base_service.rb
+++ b/app/services/issuable_base_service.rb
@@ -36,12 +36,6 @@ class IssuableBaseService < BaseService
     end
   end
 
-  def create_confidentiality_note(issuable)
-    SystemNoteService.change_confidentiality(
-      issuable, issuable.project, current_user
-    )
-  end
-
   def filter_params(issuable_ability_name = :issue)
     filter_assignee
     filter_milestone
diff --git a/app/services/issues/update_service.rb b/app/services/issues/update_service.rb
index 3a9bbf8a78c..c7d406cc331 100644
--- a/app/services/issues/update_service.rb
+++ b/app/services/issues/update_service.rb
@@ -10,7 +10,7 @@ module Issues
       end
 
       if issue.previous_changes.include?('title') ||
-          issue.previous_changes.include?('description')
+         issue.previous_changes.include?('description')
         todo_service.update_issue(issue, current_user)
       end
 
@@ -41,5 +41,11 @@ module Issues
     def close_service
       Issues::CloseService
     end
+
+    private
+
+    def create_confidentiality_note(issue)
+      SystemNoteService.change_issue_confidentiality(issue, issue.project, current_user)
+    end
   end
 end
diff --git a/app/services/system_note_service.rb b/app/services/system_note_service.rb
index e9e3c472e6d..972f8b2012d 100644
--- a/app/services/system_note_service.rb
+++ b/app/services/system_note_service.rb
@@ -169,29 +169,24 @@ class SystemNoteService
   #
   # Returns the created Note object
   def self.change_title(noteable, project, author, old_title)
-    return unless noteable.respond_to?(:title)
-
     body = "Title changed from **#{old_title}** to **#{noteable.title}**"
     create_note(noteable: noteable, project: project, author: author, note: body)
   end
 
   # Called when the confidentiality changes
   #
-  # noteable    - Noteable object that responds to 'confidential'
-  # project     - Project owning noteable
-  # author      - User performing the change
+  # issue   - Issue object
+  # project - Project owning the issue
+  # author  - User performing the change
   #
   # Example Note text:
   #
-  # "Marked as confidential"
+  # "Made the issue confidential"
   #
   # Returns the created Note object
-  def self.change_confidentiality(noteable, project, author)
-    return unless noteable.respond_to?(:confidential)
-
-    confidentiality_status = noteable.confidential ? "confidential" : "not confidential"
-    body = "Marked as #{confidentiality_status}"
-    create_note(noteable: noteable, project: project, author: author, note: body)
+  def self.change_issue_confidentiality(issue, project, author)
+    body = issue.confidential ? 'Made the issue confidential' : 'Made the issue visible'
+    create_note(noteable: issue, project: project, author: author, note: body)
   end
 
   # Called when a branch in Noteable is changed
diff --git a/spec/services/issues/update_service_spec.rb b/spec/services/issues/update_service_spec.rb
index c9d8f1b382c..810a1f2d666 100644
--- a/spec/services/issues/update_service_spec.rb
+++ b/spec/services/issues/update_service_spec.rb
@@ -82,10 +82,10 @@ describe Issues::UpdateService, services: true do
       end
 
       it 'creates system note about confidentiality change' do
-        note = find_note('Marked as confidential')
+        note = find_note('Made the issue confidential')
 
         expect(note).not_to be_nil
-        expect(note.note).to eq 'Marked as confidential'
+        expect(note.note).to eq 'Made the issue confidential'
       end
     end
 
diff --git a/spec/services/system_note_service_spec.rb b/spec/services/system_note_service_spec.rb
index 4fa60436155..bffad59b8b6 100644
--- a/spec/services/system_note_service_spec.rb
+++ b/spec/services/system_note_service_spec.rb
@@ -244,24 +244,16 @@ describe SystemNoteService, services: true do
           to eq "Title changed from **Old title** to **#{noteable.title}**"
       end
     end
-
-    context 'when noteable does not respond to `title' do
-      let(:noteable) { double('noteable') }
-
-      it 'returns nil' do
-        expect(subject).to be_nil
-      end
-    end
   end
 
-  describe '.change_confidentiality' do
-    subject { described_class.change_confidentiality(noteable, project, author) }
+  describe '.change_issue_confidentiality' do
+    subject { described_class.change_issue_confidentiality(noteable, project, author) }
 
     context 'when noteable responds to `confidential`' do
       it_behaves_like 'a system note'
 
       it 'sets the note text' do
-        expect(subject.note).to eq "Marked as not confidential"
+        expect(subject.note).to eq 'Made the issue visible'
       end
     end
   end