diff --git a/docs/release-notes/version-2.11.md b/docs/release-notes/version-2.11.md
index 19e411d03..38b2074bb 100644
--- a/docs/release-notes/version-2.11.md
+++ b/docs/release-notes/version-2.11.md
@@ -5,6 +5,7 @@
 ### Bug Fixes
 
 * [#6246](https://github.com/netbox-community/netbox/issues/6246) - Permit full-length descriptions when creating device components and VM interfaces
+* [#6258](https://github.com/netbox-community/netbox/issues/6258) - Fix parent assignment for SiteGroup API serializer
 
 ---
 
diff --git a/netbox/dcim/api/serializers.py b/netbox/dcim/api/serializers.py
index e9efe4136..377449140 100644
--- a/netbox/dcim/api/serializers.py
+++ b/netbox/dcim/api/serializers.py
@@ -90,7 +90,7 @@ class RegionSerializer(NestedGroupModelSerializer):
 
 class SiteGroupSerializer(NestedGroupModelSerializer):
     url = serializers.HyperlinkedIdentityField(view_name='dcim-api:sitegroup-detail')
-    parent = NestedRegionSerializer(required=False, allow_null=True)
+    parent = NestedSiteGroupSerializer(required=False, allow_null=True)
     site_count = serializers.IntegerField(read_only=True)
 
     class Meta: