diff --git a/core/modules/entity/lib/Drupal/entity/Entity/EntityDisplay.php b/core/modules/entity/lib/Drupal/entity/Entity/EntityDisplay.php
index a986716..baf1cbd 100644
--- a/core/modules/entity/lib/Drupal/entity/Entity/EntityDisplay.php
+++ b/core/modules/entity/lib/Drupal/entity/Entity/EntityDisplay.php
@@ -33,7 +33,7 @@ class EntityDisplay extends EntityDisplayBase implements EntityViewDisplayInterf
   /**
    * {@inheritdoc}
    */
-  var $displayContext = 'view';
+  protected $displayContext = 'view';
 
   /**
    * {@inheritdoc}
diff --git a/core/modules/entity/lib/Drupal/entity/Entity/EntityFormDisplay.php b/core/modules/entity/lib/Drupal/entity/Entity/EntityFormDisplay.php
index b0b8683..26de1db 100644
--- a/core/modules/entity/lib/Drupal/entity/Entity/EntityFormDisplay.php
+++ b/core/modules/entity/lib/Drupal/entity/Entity/EntityFormDisplay.php
@@ -33,7 +33,7 @@ class EntityFormDisplay extends EntityDisplayBase implements EntityFormDisplayIn
   /**
    * {@inheritdoc}
    */
-  var $displayContext = 'form';
+  protected $displayContext = 'form';
 
   /**
    * {@inheritdoc}
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverview.php b/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverview.php
index df79294..a7444d7 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverview.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverview.php
@@ -19,7 +19,7 @@ class DisplayOverview extends DisplayOverviewBase {
   /**
    * {@inheritdoc}
    */
-  var $displayContext = 'view';
+  protected $displayContext = 'view';
 
   /**
    * {@inheritdoc}
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverviewBase.php b/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverviewBase.php
index 7eb0945..dc5df09 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverviewBase.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/DisplayOverviewBase.php
@@ -24,7 +24,7 @@
    *
    * @var string
    */
-  var $displayContext;
+  protected $displayContext;
 
   /**
    * The widget or formatter plugin manager.
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/FormDisplayOverview.php b/core/modules/field_ui/lib/Drupal/field_ui/FormDisplayOverview.php
index df4931f..25794f6 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/FormDisplayOverview.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/FormDisplayOverview.php
@@ -19,7 +19,7 @@ class FormDisplayOverview extends DisplayOverviewBase {
   /**
    * {@inheritdoc}
    */
-  var $displayContext = 'form';
+  protected $displayContext = 'form';
 
   /**
    * {@inheritdoc}