diff --git a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs
index caaed6f3df..5254b10238 100644
--- a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs
+++ b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs
@@ -55,7 +55,7 @@ namespace Volo.Abp.Http.Client.ClientProxying
                 arguments = new ClientProxyRequestTypeValue();
             }
 
-            var methodUniqueName = $"{typeof(TService).FullName}.{methodName}.{string.Join("-", arguments.Select(x => x.Key.FullName))}";
+            var methodUniqueName = $"{typeof(TService).FullName}.{methodName}.{string.Join("-", arguments.Values.Select(x => x.Key.FullName))}";
             var action = ClientProxyApiDescriptionFinder.FindAction(methodUniqueName);
             if (action == null)
             {
@@ -65,7 +65,7 @@ namespace Volo.Abp.Http.Client.ClientProxying
                 action,
                 action.Parameters
                     .GroupBy(x => x.NameOnMethod)
-                    .Select((x, i) => new KeyValuePair<string, object>(x.Key, arguments.Values.Skip(i).FirstOrDefault()))
+                    .Select((x, i) => new KeyValuePair<string, object>(x.Key, arguments.Values[i].Value))
                     .ToDictionary(x => x.Key, x => x.Value),
                 typeof(TService));
         }
diff --git a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyRequestTypeValue.cs b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyRequestTypeValue.cs
index 7560a9971e..56487e8f95 100644
--- a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyRequestTypeValue.cs
+++ b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyRequestTypeValue.cs
@@ -1,10 +1,31 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 
 namespace Volo.Abp.Http.Client.ClientProxying
 {
-    public class ClientProxyRequestTypeValue : Dictionary<Type, object>
+    public class ClientProxyRequestTypeValue : IEnumerable<KeyValuePair<Type, object>>
     {
+        public List<KeyValuePair<Type, object>> Values { get; private set; }
 
+        public ClientProxyRequestTypeValue()
+        {
+            Values = new List<KeyValuePair<Type, object>>();
+        }
+
+        public void Add(Type type, object value)
+        {
+            Values.Add(new KeyValuePair<Type, object>(type, value));
+        }
+
+        public IEnumerator<KeyValuePair<Type, object>> GetEnumerator()
+        {
+            return Values.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
     }
 }