diff --git a/v2rayN/ServiceLib/Handler/CoreHandler.cs b/v2rayN/ServiceLib/Handler/CoreHandler.cs
index 0940b14ec9..e181eb30cc 100644
--- a/v2rayN/ServiceLib/Handler/CoreHandler.cs
+++ b/v2rayN/ServiceLib/Handler/CoreHandler.cs
@@ -99,7 +99,7 @@ public async Task<int> LoadCoreConfigSpeedtest(List<ServerTestItem> selecteds)
             var coreType = selecteds.Exists(t => t.ConfigType is EConfigType.Hysteria2 or EConfigType.TUIC or EConfigType.WireGuard) ? ECoreType.sing_box : ECoreType.Xray;
             var configPath = Utils.GetConfigPath(Global.CoreSpeedtestConfigFileName);
             var result = await CoreConfigHandler.GenerateClientSpeedtestConfig(_config, configPath, selecteds, coreType);
-            ShowMsg(false, result.Msg); 
+            ShowMsg(false, result.Msg);
             if (result.Success)
             {
                 ShowMsg(false, string.Format(ResUI.StartService, DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss")));
@@ -297,10 +297,11 @@ private bool IsNeedSudo(ECoreType eCoreType)
                 if (isNeedSudo)
                 {
                     proc.StartInfo.FileName = $"/bin/sudo";
-                    proc.StartInfo.Arguments = $"-S {fileName} {string.Format(coreInfo.Arguments, Utils.GetConfigPath(configPath))}";
+                    proc.StartInfo.Arguments = $"-S {fileName.AppendQuotes()} {string.Format(coreInfo.Arguments, Utils.GetConfigPath(configPath).AppendQuotes())}";
                     proc.StartInfo.WorkingDirectory = null;
                     proc.StartInfo.StandardInputEncoding = Encoding.UTF8;
                     proc.StartInfo.RedirectStandardInput = true;
+                    Logging.SaveLog(proc.StartInfo.Arguments);
                 }
 
                 var startUpErrorMessage = new StringBuilder();
diff --git a/v2rayN/ServiceLib/Handler/CoreInfoHandler.cs b/v2rayN/ServiceLib/Handler/CoreInfoHandler.cs
index aeb5e57d84..5b8fa6063e 100644
--- a/v2rayN/ServiceLib/Handler/CoreInfoHandler.cs
+++ b/v2rayN/ServiceLib/Handler/CoreInfoHandler.cs
@@ -165,7 +165,7 @@ private void InitCoreInfo()
 
         private string PortableMode()
         {
-            return $" -d \"{Utils.GetBinPath("")}\"";
+            return $" -d {Utils.GetBinPath("").AppendQuotes()}";
         }
     }
 }
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs
index d8f787e896..885986dac5 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs
@@ -1024,18 +1024,17 @@ public async Task<int> GenBoundStreamSettings(ProfileItem node, StreamSettings4R
                             //request Host
                             string request = Utils.GetEmbedText(Global.V2raySampleHttpRequestFileName);
                             string[] arrHost = host.Split(',');
-                            string host2 = string.Join("\",\"", arrHost);
-                            request = request.Replace("$requestHost$", $"\"{host2}\"");
-                            //request = request.Replace("$requestHost$", string.Format("\"{0}\"", config.requestHost()));
-                            request = request.Replace("$requestUserAgent$", $"\"{useragent}\"");
+                            string host2 = string.Join(",".AppendQuotes(), arrHost);
+                            request = request.Replace("$requestHost$", $"{host2.AppendQuotes()}");
+                            request = request.Replace("$requestUserAgent$", $"{useragent.AppendQuotes()}");
                             //Path
                             string pathHttp = @"/";
                             if (Utils.IsNotEmpty(node.Path))
                             {
                                 string[] arrPath = node.Path.Split(',');
-                                pathHttp = string.Join("\",\"", arrPath);
+                                pathHttp = string.Join(",".AppendQuotes(), arrPath);
                             }
-                            request = request.Replace("$requestPath$", $"\"{pathHttp}\"");
+                            request = request.Replace("$requestPath$", $"{pathHttp.AppendQuotes()}");
                             tcpSettings.header.request = JsonUtils.Deserialize<object>(request);
 
                             streamSettings.tcpSettings = tcpSettings;