diff --git a/core/modules/comment/tests/src/Functional/CommentUserTest.php b/core/modules/comment/tests/src/Functional/CommentUserTest.php
index b43c1a1..3faf8fa 100644
--- a/core/modules/comment/tests/src/Functional/CommentUserTest.php
+++ b/core/modules/comment/tests/src/Functional/CommentUserTest.php
@@ -99,7 +99,7 @@ public function testUserCommenting() {
     $edit = [];
     $edit['subject[0][value]'] = 'I can comment on a user?';
     $this->submitForm($edit, t('Save'));
-    $this->assertSession()->addressEquals($this->basePath . 'user/' . $this->adminUser->id() . '#comment-1');
+    $this->assertSession()->addressEquals($this->basePath . '/user/' . $this->adminUser->id() . '#comment-1');
     $this->assertSession()->pageTextContains('Your comment has been posted');
     $this->assertSession()->statusCodeEquals(200);
     $this->assertSession()->pageTextContains('I can comment on a user');