From b38a6116227c2162586007506007f63461b97c7f Mon Sep 17 00:00:00 2001
From: Jeremy Stretch <jstretch@netboxlabs.com>
Date: Mon, 11 Aug 2025 15:11:20 -0400
Subject: [PATCH] Use empty lookup for numeric custom fields instead of isnull

---
 netbox/utilities/constants.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/netbox/utilities/constants.py b/netbox/utilities/constants.py
index 9f027f8e1..1ad0d4847 100644
--- a/netbox/utilities/constants.py
+++ b/netbox/utilities/constants.py
@@ -23,7 +23,7 @@ FILTER_NUMERIC_BASED_LOOKUP_MAP = dict(
     lt='lt',
     gte='gte',
     gt='gt',
-    empty='isnull',
+    empty='empty',
 )
 
 FILTER_NEGATION_LOOKUP_MAP = dict(