diff --git a/src/Form/SettingsForm.php b/src/Form/SettingsForm.php
index 7e50f30..9f6bfef 100755
--- a/src/Form/SettingsForm.php
+++ b/src/Form/SettingsForm.php
@@ -4,7 +4,7 @@ namespace Drupal\acquia_vwo\Form;
 
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Config\TypedConfigManagerInterface;
-use Drupal\Core\Extension\ModuleHandler;
+use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Form\ConfigFormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
@@ -30,13 +30,13 @@ class SettingsForm extends ConfigFormBase {
    *   The config factory.
    * @param \Drupal\Core\Config\TypedConfigManagerInterface $typed_config
    *   The typed configuration manager.
-   * @param \Drupal\Core\Extension\ModuleHandler $module_handler
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
    *   The module handler.
    */
   public function __construct(
     ConfigFactoryInterface $config_factory,
     TypedConfigManagerInterface $typed_config,
-    ModuleHandler $module_handler,
+    ModuleHandlerInterface $module_handler,
   ) {
     parent::__construct($config_factory, $typed_config);
     $this->moduleHandler = $module_handler;