diff --git a/core/modules/path/src/Tests/PathAliasTest.php b/core/modules/path/src/Tests/PathAliasTest.php
index 063e988..4f62bd6 100644
--- a/core/modules/path/src/Tests/PathAliasTest.php
+++ b/core/modules/path/src/Tests/PathAliasTest.php
@@ -101,7 +101,7 @@ function testAdminAlias() {
     $this->drupalPostForm('admin/config/search/path/edit/' . $pid, $edit, t('Save'));
 
     // Confirm that the alias works.
-    $this->drupalGet($edit['alias']);
+    $this->drupalGet(Unicode::strtolower($edit['alias']));
     $this->assertText($node1->label(), 'Changed alias works.');
     $this->assertResponse(200);
 
@@ -233,7 +233,7 @@ function testNodeAlias() {
     $this->drupalPostForm('node/' . $node1->id() . '/edit', $edit, t('Save'));
 
     // Confirm that the alias works.
-    $this->drupalGet($edit['path[0][alias]']);
+    $this->drupalGet(Unicode::strtolower($edit['path[0][alias]']));
     $this->assertText($node1->label(), 'Changed alias works.');
     $this->assertResponse(200);