diff --git a/core/modules/filter/src/Plugin/FilterBase.php b/core/modules/filter/src/Plugin/FilterBase.php
index 9949c6c4b742644b5c74496d160b1af03375091b..6f7f5e344d829e5c1691a5ac19efb986846bba49 100644
--- a/core/modules/filter/src/Plugin/FilterBase.php
+++ b/core/modules/filter/src/Plugin/FilterBase.php
@@ -15,13 +15,6 @@
  */
 abstract class FilterBase extends PluginBase implements FilterInterface {
 
-  /**
-   * The plugin ID of this filter.
-   *
-   * @var string
-   */
-  protected $plugin_id;
-
   /**
    * The name of the provider that owns this filter.
    *