diff --git a/app/init/registers.php b/app/init/registers.php
index 4fae82140d..654bb67d2e 100644
--- a/app/init/registers.php
+++ b/app/init/registers.php
@@ -103,7 +103,7 @@ $register->set('pools', function () {
     $group = new Group();
 
     $fallbackForDB = 'db_main=' . AppwriteURL::unparse([
-        'scheme' => System::getEnv('_APP_DB_ADAPTER', 'mongodb'),
+        'scheme' => System::getEnv('_APP_DB_ADAPTER', 'mariadb'),
         'host' => System::getEnv('_APP_DB_HOST', 'mariadb'),
         'port' => System::getEnv('_APP_DB_PORT', '3306'),
         'user' => System::getEnv('_APP_DB_USER', ''),