diff --git a/app/services/exports/user_export_service.rb b/app/services/exports/user_export_service.rb
index 207a0a045..fe228158c 100644
--- a/app/services/exports/user_export_service.rb
+++ b/app/services/exports/user_export_service.rb
@@ -61,6 +61,7 @@ module Exports
       attribute_hash["role"] = user.role
       attribute_hash["organisation_name"] = user.organisation.name
       attribute_hash["active"] = user.active?
+      attribute_hash["phone"] = [user.phone, user.phone_extension].compact.join(" ")
       attribute_hash
     end
   end
diff --git a/spec/fixtures/exports/user.xml b/spec/fixtures/exports/user.xml
index 98226c556..5652ac9c6 100644
--- a/spec/fixtures/exports/user.xml
+++ b/spec/fixtures/exports/user.xml
@@ -8,7 +8,7 @@
     <sign_in_count>5</sign_in_count>
     <last_sign_in_at/>
     <role>data_provider</role>
-    <phone>1234512345123</phone>
+    <phone>1234512345123 123</phone>
     <is_dpo>false</is_dpo>
     <is_key_contact>false</is_key_contact>
     <active>true</active>
diff --git a/spec/services/exports/user_export_service_spec.rb b/spec/services/exports/user_export_service_spec.rb
index 1f0406d01..c488623da 100644
--- a/spec/services/exports/user_export_service_spec.rb
+++ b/spec/services/exports/user_export_service_spec.rb
@@ -42,7 +42,7 @@ RSpec.describe Exports::UserExportService do
     end
 
     context "and one user is available for export" do
-      let!(:user) { create(:user, organisation:) }
+      let!(:user) { create(:user, organisation:, phone_extension: "123") }
 
       it "generates a ZIP export file with the expected filename" do
         expect(storage_service).to receive(:write_file).with(expected_zip_filename, any_args)