diff --git a/netbox/utilities/constants.py b/netbox/utilities/constants.py
index c3fbd0687..08e9dd9cf 100644
--- a/netbox/utilities/constants.py
+++ b/netbox/utilities/constants.py
@@ -57,6 +57,7 @@ HTTP_REQUEST_META_SAFE_COPY = [
     'HTTP_HOST',
     'HTTP_REFERER',
     'HTTP_USER_AGENT',
+    'HTTP_X_FORWARDED_FOR',
     'QUERY_STRING',
     'REMOTE_ADDR',
     'REMOTE_HOST',