diff --git a/src/registrar/tests/test_views_portfolio.py b/src/registrar/tests/test_views_portfolio.py
index 357b63594..dfc36dd2b 100644
--- a/src/registrar/tests/test_views_portfolio.py
+++ b/src/registrar/tests/test_views_portfolio.py
@@ -427,6 +427,7 @@ class TestPortfolio(WebTest):
             portfolio_org_name_page.form["city"] = "London"
             portfolio_org_name_page.form["zipcode"] = "11111"
 
+            self.app.set_cookie(settings.SESSION_COOKIE_NAME, session_id)
             success_result_page = portfolio_org_name_page.form.submit()
             self.assertEqual(success_result_page.status_code, 302)
             self.assertContains(success_result_page, "6 Downing st")