diff --git a/src/mibew/libs/classes/Mibew/Controller/InstallController.php b/src/mibew/libs/classes/Mibew/Controller/InstallController.php
index 46f81553..975b97c1 100644
--- a/src/mibew/libs/classes/Mibew/Controller/InstallController.php
+++ b/src/mibew/libs/classes/Mibew/Controller/InstallController.php
@@ -19,7 +19,7 @@
 
 namespace Mibew\Controller;
 
-use Mibew\Installer;
+use Mibew\Maintenance\Installer;
 use Mibew\Style\PageStyle;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -474,7 +474,7 @@ class InstallController extends AbstractController
     /**
      * Initialize installer.
      *
-     * @return \Mibew\Installer
+     * @return \Mibew\Maintenance\Installer
      */
     protected function getInstaller()
     {
diff --git a/src/mibew/libs/classes/Mibew/Installer.php b/src/mibew/libs/classes/Mibew/Maintenance/Installer.php
similarity index 99%
rename from src/mibew/libs/classes/Mibew/Installer.php
rename to src/mibew/libs/classes/Mibew/Maintenance/Installer.php
index d538e417..1a764b36 100644
--- a/src/mibew/libs/classes/Mibew/Installer.php
+++ b/src/mibew/libs/classes/Mibew/Maintenance/Installer.php
@@ -17,7 +17,7 @@
  * limitations under the License.
  */
 
-namespace Mibew;
+namespace Mibew\Maintenance;
 
 use Mibew\Database;
 use Symfony\Component\Yaml\Parser as YamlParser;