diff --git a/core/lib/Drupal/Core/EventSubscriber/EntityRouteAlterSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/EntityRouteAlterSubscriber.php
index 7c25539..071647a 100644
--- a/core/lib/Drupal/Core/EventSubscriber/EntityRouteAlterSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/EntityRouteAlterSubscriber.php
@@ -62,7 +62,7 @@ public function onRoutingRouteAlterSetLatestRevision(RouteBuildEvent $event) {
       }
       $parameters = $route->getOption('parameters') ?: [];
       foreach ($parameters as &$parameter) {
-        $parameter['_load_latest_revision'] = TRUE;
+        $parameter['load_latest_revision'] = TRUE;
       }
       $route->setOption('parameters', $parameters);
     }
diff --git a/core/lib/Drupal/Core/ParamConverter/EntityConverter.php b/core/lib/Drupal/Core/ParamConverter/EntityConverter.php
index ef1b19e..5478de8 100644
--- a/core/lib/Drupal/Core/ParamConverter/EntityConverter.php
+++ b/core/lib/Drupal/Core/ParamConverter/EntityConverter.php
@@ -4,9 +4,7 @@
 
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
-use Drupal\Core\Entity\RevisionableInterface;
 use Drupal\Core\TypedData\TranslatableInterface;
-use Drupal\node\Entity\Node;
 use Symfony\Component\Routing\Route;
 
 /**
@@ -66,7 +64,7 @@ public function convert($value, $definition, $name, array $defaults) {
       $entity = $storage->load($value);
 
       // If the entity type is revisionable, load the latest revision.
-      if ($entity instanceof EntityInterface && !empty($definition['_load_latest_revision']) && $entity->getEntityType()->isRevisionable()) {
+      if ($entity instanceof EntityInterface && !empty($definition['load_latest_revision']) && $entity->getEntityType()->isRevisionable()) {
         // @todo, replace this with query with a standardised way of getting the
         // latest revision in https://www.drupal.org/node/2784201.
         $entity_revisions = $storage
diff --git a/core/tests/Drupal/KernelTests/Core/ParamConverter/EntityConverterLatestRevisionTest.php b/core/tests/Drupal/KernelTests/Core/ParamConverter/EntityConverterLatestRevisionTest.php
index 8eff20a..9f14d44 100644
--- a/core/tests/Drupal/KernelTests/Core/ParamConverter/EntityConverterLatestRevisionTest.php
+++ b/core/tests/Drupal/KernelTests/Core/ParamConverter/EntityConverterLatestRevisionTest.php
@@ -7,7 +7,7 @@
 use Drupal\language\Entity\ConfigurableLanguage;
 
 /**
- * Test the entity converter when the _load_latest_revision flag is set.
+ * Test the entity converter when the "load_latest_revision" flag is set.
  *
  * @group ParamConverter
  * @coversDefaultClass \Drupal\Core\ParamConverter\EntityConverter
@@ -53,7 +53,7 @@ protected function setUp() {
    */
   public function testNoEntity() {
     $converted = $this->converter->convert(1, [
-      '_load_latest_revision' => TRUE,
+      'load_latest_revision' => TRUE,
       'type' => 'entity:entity_test_mulrev',
     ], 'foo', []);
     $this->assertEquals(NULL, $converted);
@@ -67,7 +67,7 @@ public function testEntityNoPendingRevision() {
     $entity->save();
 
     $converted = $this->converter->convert(1, [
-      '_load_latest_revision' => TRUE,
+      'load_latest_revision' => TRUE,
       'type' => 'entity:entity_test_mulrev',
     ], 'foo', []);
     $this->assertEquals($entity->getLoadedRevisionId(), $converted->getLoadedRevisionId());
@@ -85,7 +85,7 @@ public function testEntityWithPendingRevision() {
     $entity->save();
 
     $converted = $this->converter->convert(1, [
-      '_load_latest_revision' => TRUE,
+      'load_latest_revision' => TRUE,
       'type' => 'entity:entity_test_mulrev',
     ], 'foo', []);
 
@@ -115,7 +115,7 @@ public function testWithTranslatedPendingRevision() {
 
     // The converter will load the latest revision in the correct language.
     $converted = $this->converter->convert(1, [
-      '_load_latest_revision' => TRUE,
+      'load_latest_revision' => TRUE,
       'type' => 'entity:entity_test_mulrev',
     ], 'foo', []);
     $this->assertEquals('de', $converted->language()->getId());