diff --git a/src/Form/RevisionOverviewForm.php b/src/Form/RevisionOverviewForm.php
index be03826..6263768 100755
--- a/src/Form/RevisionOverviewForm.php
+++ b/src/Form/RevisionOverviewForm.php
@@ -217,7 +217,9 @@ class RevisionOverviewForm extends FormBase {
       }
       /** @var \Drupal\Core\Entity\ContentEntityInterface $revision */
       if ($revision = $node_storage->loadRevision($vid)) {
-        if ($revision->hasTranslation($langcode) && $revision->getTranslation($langcode)->isRevisionTranslationAffected()) {
+        if ($revision->hasTranslation($langcode) &&
+          ($revision = $revision->getTranslation($langcode)) &&
+          $revision->isRevisionTranslationAffected()) {
           $username = [
             '#theme' => 'username',
             '#account' => $revision->getRevisionUser(),