diff --git a/migrations/Version20250222165240.php b/migrations/Version20250222165240.php
index 5dd73d44..84e4f709 100644
--- a/migrations/Version20250222165240.php
+++ b/migrations/Version20250222165240.php
@@ -20,8 +20,8 @@ final class Version20250222165240 extends AbstractMigration
     public function up(Schema $schema): void
     {
         //Change the old discriminator values to the new ones
-        $this->addSql('UPDATE attachments SET class_name = "Part" WHERE class_name = "PartDB\Part"');
-        $this->addSql('UPDATE attachments SET class_name = "Device" WHERE class_name = "PartDB\Device"');
+        $this->addSql("UPDATE attachments SET class_name = 'Part' WHERE class_name = 'PartDB\Part'");
+        $this->addSql("UPDATE attachments SET class_name = 'Device' WHERE class_name = ''PartDB\Device'");
     }
 
     public function down(Schema $schema): void