diff --git a/example/csharp/TdExample.cs b/example/csharp/TdExample.cs
index c28932ec5..49f862bc9 100644
--- a/example/csharp/TdExample.cs
+++ b/example/csharp/TdExample.cs
@@ -216,7 +216,7 @@ namespace TdExample
             _client = CreateTdClient();
 
             // test Client.Execute
-            _defaultHandler.OnResult(_client.Execute(new TdApi.GetTextEntities("@telegram /test_command https://telegram.org telegram.me @gif @test")));
+            _defaultHandler.OnResult(Td.Client.Execute(new TdApi.GetTextEntities("@telegram /test_command https://telegram.org telegram.me @gif @test")));
 
             // main loop
             while (!_quiting)
diff --git a/td/telegram/ClientDotNet.cpp b/td/telegram/ClientDotNet.cpp
index 62ab095b0..fb0b95edd 100644
--- a/td/telegram/ClientDotNet.cpp
+++ b/td/telegram/ClientDotNet.cpp
@@ -61,7 +61,7 @@ public:
   /// <param name="function">Object representing a query to the TDLib.</param>
   /// <returns>Returns request result.</returns>
   /// <exception cref="NullReferenceException">Thrown when query is null.</exception>
-  Api::BaseObject^ Execute(Api::Function^ function) {
+  static Api::BaseObject^ Execute(Api::Function^ function) {
     if (function == nullptr) {
       throw REF_NEW NullReferenceException("Function can't be null");
     }
@@ -69,7 +69,7 @@ public:
     td::Client::Request request;
     request.id = 0;
     request.function = td::td_api::move_object_as<td::td_api::Function>(ToUnmanaged(function)->get_object_ptr());
-    return Api::FromUnmanaged(*client->execute(std::move(request)).object);
+    return Api::FromUnmanaged(*td::Client::execute(std::move(request)).object);
   }
 
   /// <summary>