diff --git a/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php b/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php
index aae003e09..e2cb4fff2 100644
--- a/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php
+++ b/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php
@@ -354,4 +354,19 @@ class StoredObject implements AsyncFileInterface, Document, TrackCreationInterfa
 
         return $this;
     }
+
+    public function saveHistory(): void
+    {
+        if ('' === $this->getFilename()) {
+            return;
+        }
+
+        $this->datas['history'][] = [
+            'filename' => $this->getFilename(),
+            'iv' => $this->getIv(),
+            'key_infos' => $this->getKeyInfos(),
+            'type' => $this->getType(),
+            'before' => (new \DateTimeImmutable('now'))->getTimestamp(),
+        ];
+    }
 }
diff --git a/src/Bundle/ChillDocStoreBundle/Form/DataMapper/StoredObjectDataMapper.php b/src/Bundle/ChillDocStoreBundle/Form/DataMapper/StoredObjectDataMapper.php
index 3ec52134f..4e1aa36d6 100644
--- a/src/Bundle/ChillDocStoreBundle/Form/DataMapper/StoredObjectDataMapper.php
+++ b/src/Bundle/ChillDocStoreBundle/Form/DataMapper/StoredObjectDataMapper.php
@@ -59,8 +59,8 @@ class StoredObjectDataMapper implements DataMapperInterface
 
         /** @var StoredObject $viewData */
         if ($viewData->getFilename() !== $forms['stored_object']->getData()['filename']) {
-            // we do not want to erase the previous object
-            $viewData = new StoredObject();
+            // we want to keep the previous history
+            $viewData->saveHistory();
         }
 
         $viewData->setFilename($forms['stored_object']->getData()['filename']);
diff --git a/src/Bundle/ChillDocStoreBundle/Tests/Entity/StoredObjectTest.php b/src/Bundle/ChillDocStoreBundle/Tests/Entity/StoredObjectTest.php
new file mode 100644
index 000000000..33394114f
--- /dev/null
+++ b/src/Bundle/ChillDocStoreBundle/Tests/Entity/StoredObjectTest.php
@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\DocStoreBundle\Tests\Entity;
+
+use Chill\DocStoreBundle\Entity\StoredObject;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
+class StoredObjectTest extends KernelTestCase
+{
+    public function testSaveHistory(): void
+    {
+        $storedObject = new StoredObject();
+        $storedObject
+            ->setFilename('test_0')
+            ->setIv([2, 4, 6, 8])
+            ->setKeyInfos(['key' => ['data0' => 'data0']])
+            ->setType('text/html');
+
+        $storedObject->saveHistory();
+
+        $storedObject
+            ->setFilename('test_1')
+            ->setIv([8, 10, 12])
+            ->setKeyInfos(['key' => ['data1' => 'data1']])
+            ->setType('text/text');
+
+        $storedObject->saveHistory();
+
+        self::assertEquals('test_0', $storedObject->getDatas()['history'][0]['filename']);
+        self::assertEquals([2, 4, 6, 8], $storedObject->getDatas()['history'][0]['iv']);
+        self::assertEquals(['key' => ['data0' => 'data0']], $storedObject->getDatas()['history'][0]['key_infos']);
+        self::assertEquals('text/html', $storedObject->getDatas()['history'][0]['type']);
+
+        self::assertEquals('test_1', $storedObject->getDatas()['history'][1]['filename']);
+        self::assertEquals([8, 10, 12], $storedObject->getDatas()['history'][1]['iv']);
+        self::assertEquals(['key' => ['data1' => 'data1']], $storedObject->getDatas()['history'][1]['key_infos']);
+        self::assertEquals('text/text', $storedObject->getDatas()['history'][1]['type']);
+    }
+}
diff --git a/src/Bundle/ChillDocStoreBundle/Tests/Form/StoredObjectTypeTest.php b/src/Bundle/ChillDocStoreBundle/Tests/Form/StoredObjectTypeTest.php
index 863433af8..2fc17787a 100644
--- a/src/Bundle/ChillDocStoreBundle/Tests/Form/StoredObjectTypeTest.php
+++ b/src/Bundle/ChillDocStoreBundle/Tests/Form/StoredObjectTypeTest.php
@@ -56,14 +56,14 @@ class StoredObjectTypeTest extends TypeTestCase
             {"filename":"abcdef","iv":[10, 15, 20, 30],"keyInfos":[],"type":"text/html","status":"object_store_created"}
             JSON];
         $model = new StoredObject();
-        $originalObjectId = spl_object_id($model);
+        $originalObjectId = spl_object_hash($model);
         $form = $this->factory->create(StoredObjectType::class, $model, ['has_title' => true]);
 
         $form->submit($formData);
 
         $this->assertTrue($form->isSynchronized());
         $model = $form->getData();
-        $this->assertNotEquals($originalObjectId, spl_object_hash($model));
+        $this->assertEquals($originalObjectId, spl_object_hash($model));
         $this->assertEquals('abcdef', $model->getFilename());
         $this->assertEquals([10, 15, 20, 30], $model->getIv());
         $this->assertEquals('text/html', $model->getType());