diff --git a/lib/delphi/test/serializer/TestSerializer.dpr b/lib/delphi/test/serializer/TestSerializer.dpr
index 3d9a453..9e283e5 100644
--- a/lib/delphi/test/serializer/TestSerializer.dpr
+++ b/lib/delphi/test/serializer/TestSerializer.dpr
@@ -24,6 +24,7 @@
 uses
   Classes, Windows, SysUtils, Generics.Collections,
   Thrift in '..\..\src\Thrift.pas',
+  Thrift.Socket in '..\..\src\Thrift.Socket.pas',
   Thrift.Transport in '..\..\src\Thrift.Transport.pas',
   Thrift.Protocol in '..\..\src\Thrift.Protocol.pas',
   Thrift.Protocol.JSON in '..\..\src\Thrift.Protocol.JSON.pas',