diff --git a/app/Models/ScheduledDatabaseBackupExecution.php b/app/Models/ScheduledDatabaseBackupExecution.php
index 1d5f5f9ce..8c5de1e8b 100644
--- a/app/Models/ScheduledDatabaseBackupExecution.php
+++ b/app/Models/ScheduledDatabaseBackupExecution.php
@@ -24,6 +24,7 @@ class ScheduledDatabaseBackupExecution extends BaseModel
     {
         return [
             'size' => 'integer',
+            'finished_at' => 'datetime',
             's3_uploaded' => 'boolean',
             'local_storage_deleted' => 'boolean',
             's3_storage_deleted' => 'boolean',
diff --git a/tests/Unit/ScheduledDatabaseBackupExecutionTest.php b/tests/Unit/ScheduledDatabaseBackupExecutionTest.php
new file mode 100644
index 000000000..b0d7df913
--- /dev/null
+++ b/tests/Unit/ScheduledDatabaseBackupExecutionTest.php
@@ -0,0 +1,8 @@
+<?php
+
+use App\Models\ScheduledDatabaseBackupExecution;
+
+it('casts finished_at to a datetime', function () {
+    expect((new ScheduledDatabaseBackupExecution)->getCasts())
+        ->toHaveKey('finished_at', 'datetime');
+});