diff --git a/apps/advanced/common/mail/layouts/html.php b/apps/advanced/common/mail/layouts/html.php
index 2e6b615f58..8e2707dc5d 100644
--- a/apps/advanced/common/mail/layouts/html.php
+++ b/apps/advanced/common/mail/layouts/html.php
@@ -1,10 +1,9 @@
 <?php
 use yii\helpers\Html;
-use yii\mail\BaseMessage;
 
 /**
  * @var \yii\web\View $this
- * @var BaseMessage $content
+ * @var \yii\mail\BaseMessage $content
  */
 ?>
 <?php $this->beginPage() ?>
diff --git a/apps/basic/mail/layouts/html.php b/apps/basic/mail/layouts/html.php
index 2e6b615f58..8e2707dc5d 100644
--- a/apps/basic/mail/layouts/html.php
+++ b/apps/basic/mail/layouts/html.php
@@ -1,10 +1,9 @@
 <?php
 use yii\helpers\Html;
-use yii\mail\BaseMessage;
 
 /**
  * @var \yii\web\View $this
- * @var BaseMessage $content
+ * @var \yii\mail\BaseMessage $content
  */
 ?>
 <?php $this->beginPage() ?>
diff --git a/extensions/debug/views/default/panels/config/detail.php b/extensions/debug/views/default/panels/config/detail.php
index 88e96a1594..b2cfde1950 100644
--- a/extensions/debug/views/default/panels/config/detail.php
+++ b/extensions/debug/views/default/panels/config/detail.php
@@ -1,6 +1,4 @@
 <?php
-use yii\helpers\Html;
-
 /**
  * @var yii\debug\panels\ConfigPanel $panel
  */
diff --git a/extensions/debug/views/default/panels/config/summary.php b/extensions/debug/views/default/panels/config/summary.php
index af722600a0..bb3a6ddaf5 100644
--- a/extensions/debug/views/default/panels/config/summary.php
+++ b/extensions/debug/views/default/panels/config/summary.php
@@ -1,7 +1,4 @@
 <?php
-
-use yii\helpers\Html;
-
 /**
  * @var yii\debug\panels\ConfigPanel $panel
  */