diff --git a/backend/app/models/event.rb b/backend/app/models/event.rb
index 3f9b1c7a1..59cf31a70 100644
--- a/backend/app/models/event.rb
+++ b/backend/app/models/event.rb
@@ -14,6 +14,7 @@ class Event < ApplicationRecord
     revoke
     reminder
     reminder_before_archive
+    unarchive
 
     opinion_created
     opinion_comment_created
@@ -24,7 +25,7 @@ class Event < ApplicationRecord
   belongs_to :entity, polymorphic: true, optional: true
 
   belongs_to :user, optional: true
-  validates :user, presence: true, if: proc { |event| %w[reminder reminder_before_archive archive].exclude?(event.name) }
+  validates :user, presence: true, if: proc { |event| %w[reminder reminder_before_archive archive unarchive].exclude?(event.name) }
 
   validates :name, presence: true, inclusion: {in: VALID_NAMES}
 
diff --git a/backend/spec/factories/events.rb b/backend/spec/factories/events.rb
index 9e35bff2d..3b786313d 100644
--- a/backend/spec/factories/events.rb
+++ b/backend/spec/factories/events.rb
@@ -64,6 +64,10 @@
       name { "archive" }
     end
 
+    trait :unarchive do
+      name { "unarchive" }
+    end
+
     trait :opinion_created do
       name { "opinion_created" }
 
diff --git a/backend/spec/models/event_spec.rb b/backend/spec/models/event_spec.rb
index 2bed38d8b..d57aff85d 100644
--- a/backend/spec/models/event_spec.rb
+++ b/backend/spec/models/event_spec.rb
@@ -15,6 +15,7 @@
       archive
       opinion_created
       opinion_comment_created
+      unarchive
     ].each do |trait|
       expect(build(:event, trait)).to be_valid
     end
@@ -181,6 +182,7 @@
         reminder
         reminder_before_archive
         archive
+        unarchive
       ].each do |name|
         context "when name is '#{name}'" do
           let(:name) { name }
@@ -239,6 +241,8 @@
       %w[
         reminder
         reminder_before_archive
+        archive
+        unarchive
       ].each do |name|
         context "when name '#{name}'" do
           let(:name) { name }
diff --git a/frontend/src/components/organisms/form-sections/HeadSection/index.tsx b/frontend/src/components/organisms/form-sections/HeadSection/index.tsx
index a111cd75b..9f04d6255 100644
--- a/frontend/src/components/organisms/form-sections/HeadSection/index.tsx
+++ b/frontend/src/components/organisms/form-sections/HeadSection/index.tsx
@@ -17,7 +17,7 @@ import {
   EnrollmentEvent,
 } from '../../../../config/event-configuration';
 import { processEvent } from '../../../../lib/process-event';
-import { createOrUpdateEnrollment } from '../../../../services/enrollments';
+import Enrollment from '../../../templates/Enrollment';
 
 export const HeadSection = () => {
   const {
@@ -32,16 +32,18 @@ export const HeadSection = () => {
   const handleUnarchiveClick = async () => {
     const event = EnrollmentEvent.unarchive;
     const eventConfiguration = eventConfigurations[event];
+    const enrollment = Enrollment;
+    const updateEnrollment = Function;
 
     try {
-      const result = await processEvent(
+      await processEvent(
         event,
         eventConfiguration,
         enrollment,
         updateEnrollment
       );
     } catch (error) {
-      console.error('Errur lors du désarchivage:', error);
+      console.error('Erreur lors du désarchivage:', error);
     }
   };