diff --git a/migrations/Version20250214083512.php b/migrations/Version20250214083512.php
new file mode 100644
index 0000000..67606f2
--- /dev/null
+++ b/migrations/Version20250214083512.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20250214083512 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE trace DROP FOREIGN KEY FK_315BD5A119EB6921');
+        $this->addSql('ALTER TABLE trace ADD CONSTRAINT FK_315BD5A119EB6921 FOREIGN KEY (client_id) REFERENCES client (id) ON DELETE CASCADE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE trace DROP FOREIGN KEY FK_315BD5A119EB6921');
+        $this->addSql('ALTER TABLE trace ADD CONSTRAINT FK_315BD5A119EB6921 FOREIGN KEY (client_id) REFERENCES client (id)');
+    }
+}
diff --git a/src/Entity/Client.php b/src/Entity/Client.php
index 6b2bb4a..b49aacd 100644
--- a/src/Entity/Client.php
+++ b/src/Entity/Client.php
@@ -15,8 +15,6 @@ use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
 #[UniqueEntity(fields: ['mac'], message: 'This MAC address is already in use.')]
 class Client extends AbstractEntity
 {
-
-    // TODO nueva variable bool isTeacher
     use NameableTrait;
 
     #[ORM\Column(length: 255, nullable: true)]
diff --git a/src/Entity/Trace.php b/src/Entity/Trace.php
index 08bcc81..97c3588 100644
--- a/src/Entity/Trace.php
+++ b/src/Entity/Trace.php
@@ -10,7 +10,7 @@ use Doctrine\ORM\Mapping as ORM;
 class Trace extends AbstractEntity
 {
     #[ORM\ManyToOne(inversedBy: 'traces')]
-    #[ORM\JoinColumn(nullable: false)]
+    #[ORM\JoinColumn(nullable: false, onDelete: 'CASCADE')]
     private ?Client $client = null;
 
     #[ORM\Column(length: 255, nullable: true)]