diff --git a/app/views/shared/wikis/edit.html.haml b/app/views/shared/wikis/edit.html.haml
index 6bbce6b80d845d76f78e351e6af6a957fdd8021e..fc56a191cad3190b5935aded9f136d407b9c4c24 100644
--- a/app/views/shared/wikis/edit.html.haml
+++ b/app/views/shared/wikis/edit.html.haml
@@ -1,5 +1,7 @@
 - wiki_page_title @page, @page.persisted? ? _('Edit') : _('New')
 - add_page_specific_style 'page_bundles/wiki'
+- @gfm_form = true
+- @noteable_type = 'Wiki'
 
 - if @error
   #js-wiki-error{ data: { error: @error, wiki_page_path: wiki_page_path(@wiki, @page) } }
diff --git a/ee/spec/features/groups/wikis_spec.rb b/ee/spec/features/groups/wikis_spec.rb
index 283db95a4941a15d9af362c1083401fbc53c12a5..ec443e24f330a8298867d11f1135eabfcebb26c8 100644
--- a/ee/spec/features/groups/wikis_spec.rb
+++ b/ee/spec/features/groups/wikis_spec.rb
@@ -7,7 +7,8 @@
 
   let_it_be(:user) { create(:user) }
 
-  let(:wiki) { create(:group_wiki, user: user) }
+  let(:group) { create(:group) }
+  let(:wiki) { create(:group_wiki, user: user, group: group) }
 
   before do
     stub_group_wikis(true)
diff --git a/spec/support/shared_examples/features/wiki/autocomplete_shared_examples.rb b/spec/support/shared_examples/features/wiki/autocomplete_shared_examples.rb
new file mode 100644
index 0000000000000000000000000000000000000000..79de2aedf3bdf403d095819737e9478ea8c9e9cf
--- /dev/null
+++ b/spec/support/shared_examples/features/wiki/autocomplete_shared_examples.rb
@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+RSpec.shared_examples 'autocompletes items' do
+  before do
+    if defined?(project)
+      create(:issue, project: project, title: 'My Cool Linked Issue')
+      create(:merge_request, source_project: project, title: 'My Cool Merge Request')
+      create(:label, project: project, title: 'My Cool Label')
+      create(:milestone, project: project, title: 'My Cool Milestone')
+
+      project.add_maintainer(create(:user, name: 'JohnDoe123'))
+    else # group wikis
+      project = create(:project, group: group)
+
+      create(:issue, project: project, title: 'My Cool Linked Issue')
+      create(:merge_request, source_project: project, title: 'My Cool Merge Request')
+      create(:group_label, group: group, title: 'My Cool Label')
+      create(:milestone, group: group, title: 'My Cool Milestone')
+
+      project.add_maintainer(create(:user, name: 'JohnDoe123'))
+    end
+  end
+
+  it 'works well for issues, labels, MRs, members, etc' do
+    fill_in :wiki_content, with: "#"
+    expect(page).to have_text 'My Cool Linked Issue'
+
+    fill_in :wiki_content, with: "~"
+    expect(page).to have_text 'My Cool Label'
+
+    fill_in :wiki_content, with: "!"
+    expect(page).to have_text 'My Cool Merge Request'
+
+    fill_in :wiki_content, with: "%"
+    expect(page).to have_text 'My Cool Milestone'
+
+    fill_in :wiki_content, with: "@"
+    expect(page).to have_text 'JohnDoe123'
+
+    fill_in :wiki_content, with: ':smil'
+    expect(page).to have_text 'smile_cat'
+  end
+end
diff --git a/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb b/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb
index 12a4c6d7583dd2e5d2610ad46fd5c49efce8d109..79c7c1891ac2d32ebe7024a28022e9015e8fc441 100644
--- a/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb
+++ b/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb
@@ -146,6 +146,8 @@
         it_behaves_like 'edits content using the content editor'
       end
     end
+
+    it_behaves_like 'autocompletes items'
   end
 
   context 'when the page is in a subdir', :js do