diff --git a/src/CoreBundle/DataFixtures/LanguageFixtures.php b/src/CoreBundle/DataFixtures/LanguageFixtures.php
index 2e2bb64e1c0..9f8c5f379a6 100644
--- a/src/CoreBundle/DataFixtures/LanguageFixtures.php
+++ b/src/CoreBundle/DataFixtures/LanguageFixtures.php
@@ -544,6 +544,14 @@ public static function getLanguages(): array
                 'format' => 'title first_name last_name',
                 'sort_by' => 'first_name',
             ],
+            [
+                'original_name' => 'မြန်မာဘာသာ',
+                'english_name' => 'burmese',
+                'isocode' => 'my_MM',
+                'available' => 0,
+                'format' => 'title first_name last_name',
+                'sort_by' => 'first_name',
+            ],
         ];
     }
 }
diff --git a/src/CoreBundle/Migrations/Schema/V200/Version20250918152900.php b/src/CoreBundle/Migrations/Schema/V200/Version20250918152900.php
new file mode 100644
index 00000000000..06c32ed2b26
--- /dev/null
+++ b/src/CoreBundle/Migrations/Schema/V200/Version20250918152900.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+/* For licensing terms, see /license.txt */
+
+namespace Chamilo\CoreBundle\Migrations\Schema\V200;
+
+use Chamilo\CoreBundle\Migrations\AbstractMigrationChamilo;
+use Doctrine\DBAL\Schema\Schema;
+
+final class Version20250918152900 extends AbstractMigrationChamilo
+{
+    public function getDescription(): string
+    {
+        return "Languages: insert Burmese (my_MM) if missing.";
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql("
+            INSERT INTO language (original_name, english_name, isocode, available)
+            SELECT 'မြန်မာဘာသာ', 'burmese', 'my_MM', 0
+            WHERE NOT EXISTS (SELECT 1 FROM language WHERE isocode = 'my_MM')
+        ");
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql("DELETE FROM language WHERE isocode = 'my_MM'");
+    }
+}