From eb72c3f66d65c2067e9815b65a531fa9ff46634a Mon Sep 17 00:00:00 2001
From: CocoByte <nicolle.leclair@gmail.com>
Date: Fri, 13 Dec 2024 12:54:21 -0700
Subject: [PATCH] (missed this commit)

---
 src/registrar/admin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/registrar/admin.py b/src/registrar/admin.py
index 3c1b51112..b2fc80e17 100644
--- a/src/registrar/admin.py
+++ b/src/registrar/admin.py
@@ -1823,7 +1823,7 @@ class DomainRequestAdmin(ListHeaderAdmin, ImportExportModelAdmin):
         """Define a custom filter for portfolio"""
 
         title = _("portfolio")
-        parameter_name = "portfolio"
+        parameter_name = "portfolio__isnull"
 
         def lookups(self, request, model_admin):
             return (