diff --git a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
index 6ec279a1..bd03b4c8 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
@@ -219,16 +219,18 @@ public partial class CoreConfigSingboxService
             }
             // remove custom nodes
             // remove group nodes for proxy chain
+            // avoid self-reference
             var childProfiles = (await Task.WhenAll(
                     Utils.String2List(profileGroupItem.ChildItems)
                         .Where(p => !p.IsNullOrEmpty())
                         .Select(AppManager.Instance.GetProfileItem)
                 ))
                 .Where(p =>
-                    p != null &&
-                    p.IsValid() &&
-                    p.ConfigType != EConfigType.Custom &&
-                    (node.ConfigType == EConfigType.PolicyGroup || p.ConfigType < EConfigType.Group)
+                    p != null
+                    && p.IsValid()
+                    && p.ConfigType != EConfigType.Custom
+                    && (node.ConfigType == EConfigType.PolicyGroup || p.ConfigType < EConfigType.Group)
+                    && p.IndexId != node.IndexId
                 )
                 .ToList();