diff --git a/Admin/Installer.php b/Admin/Installer.php
index 1e73657..08ea91e 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -38,10 +38,10 @@ class Installer extends InstallerAbstract
     {
         parent::install(__DIR__ . '/..', $dbPool, $info);
 
-        switch ($dbPool->get('core')->getType()) {
+        switch ($dbPool->get()->getType()) {
             case DatabaseType::MYSQL:
-                $dbPool->get('core')->con->prepare(
-                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get('core')->prefix . 'marketing_promotion` (
+                $dbPool->get()->con->prepare(
+                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get()->prefix . 'marketing_promotion` (
                             `marketing_promotion_id` int(11) NOT NULL AUTO_INCREMENT,
                             `marketing_promotion_name`  varchar(30) NOT NULL,
                             `marketing_promotion_description` text DEFAULT NULL,
diff --git a/Admin/Uninstall.php b/Admin/Uninstall.php
index 44cb034..d4c64a4 100644
--- a/Admin/Uninstall.php
+++ b/Admin/Uninstall.php
@@ -39,7 +39,7 @@ class Uninstall extends UninstallAbstract
 
         $query = new Builder($dbPool->get());
 
-        $query->prefix($dbPool->get('core')->getPrefix())->drop(
+        $query->prefix($dbPool->get()->getPrefix())->drop(
             'marketing_promotion'
         );