diff --git a/changelogs/unreleased/220934-confluence-wiki-db.yml b/changelogs/unreleased/220934-confluence-wiki-db.yml
new file mode 100644
index 0000000000000000000000000000000000000000..6c2c8be64f28361df3c16435508b0af7d6f4e842
--- /dev/null
+++ b/changelogs/unreleased/220934-confluence-wiki-db.yml
@@ -0,0 +1,5 @@
+---
+title: Database migration to add project_settings.has_confluence
+merge_request: 35485
+author:
+type: other
diff --git a/db/migrate/20200619000316_add_has_confluence_to_project_settings.rb b/db/migrate/20200619000316_add_has_confluence_to_project_settings.rb
new file mode 100644
index 0000000000000000000000000000000000000000..0f33e0bc47ac9e5b148732cc80552a609202c84c
--- /dev/null
+++ b/db/migrate/20200619000316_add_has_confluence_to_project_settings.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class AddHasConfluenceToProjectSettings < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    with_lock_retries do
+      add_column :project_settings, :has_confluence, :boolean, default: false, null: false
+    end
+  end
+
+  def down
+    with_lock_retries do
+      remove_column :project_settings, :has_confluence
+    end
+  end
+end
diff --git a/db/structure.sql b/db/structure.sql
index e88a5f3333dc1debfc2ae8de56a76f05aa4898a1..527359959a2dddad65b102f0bc96f76e163df24a 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -14190,6 +14190,7 @@ CREATE TABLE public.project_settings (
     show_default_award_emojis boolean DEFAULT true,
     allow_merge_on_skipped_pipeline boolean,
     squash_option smallint DEFAULT 3,
+    has_confluence boolean DEFAULT false NOT NULL,
     CONSTRAINT check_bde223416c CHECK ((show_default_award_emojis IS NOT NULL))
 );
 
@@ -23515,6 +23516,7 @@ COPY "schema_migrations" (version) FROM STDIN;
 20200618105638
 20200618134223
 20200618134723
+20200619000316
 20200619154527
 20200619154528
 20200622040750
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index 0d112bfdb2a20f65b87e017555ca2faa2ca074da..395eda1754f193aa7ecaa982e242c9ebe3e5e449 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -705,6 +705,7 @@ ProjectCiCdSetting:
 - group_runners_enabled
 ProjectSetting:
 - allow_merge_on_skipped_pipeline
+- has_confluence
 ProtectedEnvironment:
 - id
 - project_id