diff --git a/core/modules/node/tests/src/Functional/NodeTranslationUITest.php b/core/modules/node/tests/src/Functional/NodeTranslationUITest.php
index 213aeaa6de..b8b7d42486 100644
--- a/core/modules/node/tests/src/Functional/NodeTranslationUITest.php
+++ b/core/modules/node/tests/src/Functional/NodeTranslationUITest.php
@@ -585,12 +585,18 @@ public function testDetailsTitleIsNotEscaped() {
    */
   public function testUrlPrefixOnLanguageNeutralContent() {
     $this->drupalLogin($this->administrator);
-    $article = $this->drupalCreateNode(['type' => 'article', 'langcode' => 'und']);
-    $this->drupalGet("{$this->langcodes[1]}/admin/content");
-    $this->assertSession()->linkByHrefExists("{$this->langcodes[1]}/node/{$article->id()}");
+    $neutral_langcodes = [
+      LanguageInterface::LANGCODE_NOT_APPLICABLE,
+      LanguageInterface::LANGCODE_NOT_SPECIFIED,
+    ];
+    foreach ($neutral_langcodes as $langcode) {
+      $article = $this->drupalCreateNode(['type' => 'article', 'langcode' => $langcode]);
+      $this->drupalGet("{$this->langcodes[1]}/admin/content");
+      $this->assertSession()->linkByHrefExists("{$this->langcodes[1]}/node/{$article->id()}");
 
-    $this->drupalGet("{$this->langcodes[2]}/admin/content");
-    $this->assertSession()->linkByHrefExists("{$this->langcodes[2]}/node/{$article->id()}");
+      $this->drupalGet("{$this->langcodes[2]}/admin/content");
+      $this->assertSession()->linkByHrefExists("{$this->langcodes[2]}/node/{$article->id()}");
+    }
   }
 
 }