diff --git a/src/Controller/Admin/CommentCrudController.php b/src/Controller/Admin/CommentCrudController.php
index 06b2e15..ffaf3f2 100644
--- a/src/Controller/Admin/CommentCrudController.php
+++ b/src/Controller/Admin/CommentCrudController.php
@@ -56,8 +56,6 @@ class CommentCrudController extends AbstractCrudController
         ]);
         if(Crud::PAGE_EDIT === $pageName) {
             yield $createdAt->setFormTypeOption('disabled', true);
-        } else {
-            yield $createdAt;
         }
     }
 }
diff --git a/src/Entity/Comment.php b/src/Entity/Comment.php
index 58e62b5..58faa1f 100644
--- a/src/Entity/Comment.php
+++ b/src/Entity/Comment.php
@@ -7,6 +7,7 @@ use Doctrine\DBAL\Types\Types;
 use Doctrine\ORM\Mapping as ORM;
 
 #[ORM\Entity(repositoryClass: CommentRepository::class)]
+#[ORM\HasLifecycleCallbacks]
 class Comment
 {
     #[ORM\Id]
@@ -86,6 +87,12 @@ class Comment
         return $this;
     }
 
+    #[ORM\PrePersist]
+    public function setCreatedAtValue()
+    {
+        $this->createdAt = new \DateTimeImmutable();
+    }
+
     public function getConference(): ?Conference
     {
         return $this->conference;