diff --git a/lib/delphi/test/multiplexed/Multiplex.Test.Client.dpr b/lib/delphi/test/multiplexed/Multiplex.Test.Client.dpr
index 95ee486..d6f93a1 100644
--- a/lib/delphi/test/multiplexed/Multiplex.Test.Client.dpr
+++ b/lib/delphi/test/multiplexed/Multiplex.Test.Client.dpr
@@ -26,6 +26,7 @@
   SysUtils,
   Multiplex.Client.Main in 'Multiplex.Client.Main.pas',
   Thrift in '..\..\src\Thrift.pas',
+  Thrift.Socket in '..\..\src\Thrift.Socket.pas',
   Thrift.Transport in '..\..\src\Thrift.Transport.pas',
   Thrift.Transport.Pipes in '..\..\src\Thrift.Transport.Pipes.pas',
   Thrift.Protocol in '..\..\src\Thrift.Protocol.pas',
diff --git a/lib/delphi/test/multiplexed/Multiplex.Test.Server.dpr b/lib/delphi/test/multiplexed/Multiplex.Test.Server.dpr
index c7a1a19..5550036 100644
--- a/lib/delphi/test/multiplexed/Multiplex.Test.Server.dpr
+++ b/lib/delphi/test/multiplexed/Multiplex.Test.Server.dpr
@@ -25,6 +25,7 @@
   SysUtils,
   Multiplex.Server.Main in 'Multiplex.Server.Main.pas',
   Thrift in '..\..\src\Thrift.pas',
+  Thrift.Socket in '..\..\src\Thrift.Socket.pas',
   Thrift.Transport in '..\..\src\Thrift.Transport.pas',
   Thrift.Transport.Pipes in '..\..\src\Thrift.Transport.Pipes.pas',
   Thrift.Protocol in '..\..\src\Thrift.Protocol.pas',