diff --git a/src/SchedulerManager.php b/src/SchedulerManager.php
index 05551a4a225b9f1c41fc0838c592a6e6b37e04e8..cfda7e9bfea2b490082b75a1f0cf9c2a7fd3e17b 100644
--- a/src/SchedulerManager.php
+++ b/src/SchedulerManager.php
@@ -253,7 +253,7 @@ class SchedulerManager {
         $query->accessCheck(FALSE);
         // If the entity type is revisionable then make sure we look for the
         // latest revision. This is important for moderated entities.
-        if ($this->entityTypeManager->getDefinition($entityTypeId)->isRevisionable()) {
+        if ($plugin->entityTypeObject()->isRevisionable()) {
           $query->latestRevision();
         }
         $ids = $query->execute();
@@ -474,7 +474,7 @@ class SchedulerManager {
         $query->accessCheck(FALSE);
         // If the entity type is revisionable then make sure we look for the
         // latest revision. This is important for moderated entities.
-        if ($this->entityTypeManager->getDefinition($entityTypeId)->isRevisionable()) {
+        if ($plugin->entityTypeObject()->isRevisionable()) {
           $query->latestRevision();
         }
         $ids = $query->execute();
diff --git a/src/SchedulerPluginBase.php b/src/SchedulerPluginBase.php
index 20377bebacd492dddfc79180eb61e9311e703d6b..fb5ca8facda06b49450f85374fc5f0ef9e9ba0a8 100644
--- a/src/SchedulerPluginBase.php
+++ b/src/SchedulerPluginBase.php
@@ -18,6 +18,13 @@ abstract class SchedulerPluginBase extends PluginBase implements SchedulerPlugin
    */
   protected $entityTypeManager;
 
+  /**
+   * The entity type object for this plugin.
+   *
+   * @var Drupal\Core\Config\Entity\ConfigEntityType
+   */
+  protected $entityTypeObject;
+
   /**
    * A static cache of create/edit entity form IDs.
    *
@@ -38,6 +45,8 @@ abstract class SchedulerPluginBase extends PluginBase implements SchedulerPlugin
   public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
     $instance = new static($configuration, $plugin_id, $plugin_definition);
     $instance->entityTypeManager = $container->get('entity_type.manager');
+    $instance->entityTypeObject = $instance->entityTypeManager
+      ->getDefinition($plugin_definition['entityType']);
 
     return $instance;
   }
@@ -71,6 +80,16 @@ abstract class SchedulerPluginBase extends PluginBase implements SchedulerPlugin
     return $this->pluginDefinition['entityType'];
   }
 
+  /**
+   * Get the entity type object supported by this plugin.
+   *
+   * @return Drupal\Core\Config\Entity\ConfigEntityType
+   *   The entity type object.
+   */
+  public function entityTypeObject() {
+    return $this->entityTypeObject;
+  }
+
   /**
    * Get module dependency.
    *
@@ -160,9 +179,7 @@ abstract class SchedulerPluginBase extends PluginBase implements SchedulerPlugin
    *   The name of the type/bundle field for this entity type.
    */
   public function typeFieldName() {
-    return $this->entityTypeManager
-      ->getDefinition($this->entityType())
-      ->getKey('bundle');
+    return $this->entityTypeObject->getKey('bundle');
   }
 
   /**
@@ -172,12 +189,10 @@ abstract class SchedulerPluginBase extends PluginBase implements SchedulerPlugin
    *   The type/bundle objects, keyed by type/bundle name.
    */
   public function getTypes() {
-    $bundleDefinition = $this->entityTypeManager
-      ->getDefinition($this->entityType())
-      ->getBundleEntityType();
+    $bundleEntityType = $this->entityTypeObject->getBundleEntityType();
 
     return $this->entityTypeManager
-      ->getStorage($bundleDefinition)
+      ->getStorage($bundleEntityType)
       ->loadMultiple();
   }
 
@@ -200,9 +215,7 @@ abstract class SchedulerPluginBase extends PluginBase implements SchedulerPlugin
       return $this->entityTypeFormIds;
     }
 
-    $bundleEntityType = $this->entityTypeManager
-      ->getDefinition($this->entityType())
-      ->getBundleEntityType();
+    $bundleEntityType = $this->entityTypeObject->getBundleEntityType();
 
     return $this->entityTypeFormIds = $this->entityFormIdsByType($bundleEntityType, TRUE);
   }