diff --git a/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php b/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php
index 2f648fc..9f0128a 100644
--- a/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php
+++ b/core/modules/breakpoint/lib/Drupal/breakpoint/Entity/Breakpoint.php
@@ -105,7 +105,7 @@ class Breakpoint extends ConfigEntityBase implements BreakpointInterface {
    *
    * @var multipliers
    */
-  protected $multipliers = array();
+  public $multipliers = array();
 
   /**
    * {@inheritdoc}