diff --git a/v2rayN/ServiceLib/Common/Utils.cs b/v2rayN/ServiceLib/Common/Utils.cs
index 358d4e9a..13be95c9 100644
--- a/v2rayN/ServiceLib/Common/Utils.cs
+++ b/v2rayN/ServiceLib/Common/Utils.cs
@@ -459,6 +459,19 @@ public class Utils
         return false;
     }
 
+    public static string? GetDomainFromProfile(ProfileItem node)
+    {
+        if (IsDomain(node.Address))
+        {
+            return node.Address;
+        }
+        else if (node.Sni != null && IsDomain(node.Sni))
+        {
+            return node.Sni;
+        }
+        return null;
+    }
+
     #endregion 数据检查
 
     #region 测速
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs
index f31cd012..01f92f19 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs
@@ -46,16 +46,7 @@ public partial class CoreConfigSingboxService
             // Tun2SocksAddress
             if (node != null)
             {
-                string? domainToAdd = null;
-
-                if (Utils.IsDomain(node.Address))
-                {
-                    domainToAdd = node.Address;
-                }
-                else if (node.Sni != null && Utils.IsDomain(node.Sni))
-                {
-                    domainToAdd = node.Sni;
-                }
+                string? domainToAdd = Utils.GetDomainFromProfile(node);
 
                 if (domainToAdd != null)
                 {
@@ -363,16 +354,7 @@ public partial class CoreConfigSingboxService
             // Tun2SocksAddress
             if (node != null)
             {
-                string? domainToAdd = null;
-
-                if (Utils.IsDomain(node.Address))
-                {
-                    domainToAdd = node.Address;
-                }
-                else if (node.Sni != null && Utils.IsDomain(node.Sni))
-                {
-                    domainToAdd = node.Sni;
-                }
+                string? domainToAdd = Utils.GetDomainFromProfile(node);
 
                 if (domainToAdd != null)
                 {