diff --git a/src/X1.DynamicClientCore/Extensions/ServiceCollectionExtensions.cs b/src/X1.DynamicClientCore/Extensions/ServiceCollectionExtensions.cs
index 96af0d9..2c3e314 100644
--- a/src/X1.DynamicClientCore/Extensions/ServiceCollectionExtensions.cs
+++ b/src/X1.DynamicClientCore/Extensions/ServiceCollectionExtensions.cs
@@ -48,6 +48,7 @@ namespace X1.DynamicClientCore.Extensions
             // 注册仪器协议客户端（单例）
             services.AddSingleton<X1.DynamicClientCore.Features.IBaseInstrumentClient, X1.DynamicClientCore.Features.Service.InstrumentProtocolClient>();
             services.AddSingleton<X1.DynamicClientCore.Features.IInstrumentHttpClient, X1.DynamicClientCore.Features.Service.InstrumentProtocolClient>();
+            services.AddSingleton<X1.DynamicClientCore.Features.IInstrumentProtocolClient, X1.DynamicClientCore.Features.Service.InstrumentProtocolClient>();
 
             return services;
         }