diff --git a/test/components/primer/open_project/page_header_test.rb b/test/components/primer/open_project/page_header_test.rb
index b014fe73f3..d9da6a3ac5 100644
--- a/test/components/primer/open_project/page_header_test.rb
+++ b/test/components/primer/open_project/page_header_test.rb
@@ -228,7 +228,7 @@ def test_renders_tab_nav
       end
     end
 
-    assert_selector(".PageHeader--noBorder")
+    assert_selector(".PageHeader.PageHeader--withTabNav")
     assert_selector(".PageHeader-tabNav")
     assert_selector(".PageHeader-tabNav .tabnav-tab")
   end