diff --git a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
index 5b35db01..c438dabd 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs
@@ -227,7 +227,7 @@ public partial class CoreConfigSingboxService
                             : _config.HysteriaItem.UpMbps;
                         int? downMbps = protocolExtra?.DownMbps is { } sd and >= 0
                             ? sd
-                            : _config.HysteriaItem.UpMbps;
+                            : _config.HysteriaItem.DownMbps;
                         outbound.up_mbps = upMbps > 0 ? upMbps : null;
                         outbound.down_mbps = downMbps > 0 ? downMbps : null;
                         var ports = protocolExtra?.Ports?.IsNullOrEmpty() == false ? protocolExtra.Ports : null;
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
index d8985ccc..aeae3618 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
@@ -576,7 +576,7 @@ public partial class CoreConfigV2rayService
                         : _config.HysteriaItem.UpMbps;
                     int? downMbps = protocolExtra?.DownMbps is { } sd and >= 0
                         ? sd
-                        : _config.HysteriaItem.UpMbps;
+                        : _config.HysteriaItem.DownMbps;
                     var hopInterval = !protocolExtra.HopInterval.IsNullOrEmpty()
                         ? protocolExtra.HopInterval
                         : (_config.HysteriaItem.HopInterval >= 5