--- a/src/relpipe-in-filesystem.cpp	Mon Jan 20 23:47:54 2020 +0100
+++ b/src/relpipe-in-filesystem.cpp	Tue Jan 21 00:19:56 2020 +0100
@@ -50,7 +50,7 @@
 		std::unique_ptr<FilesystemCommand> command;
 		if (configuration.parallelism == 1) command = std::make_unique<PlainFilesystemCommand>();
 		else command = std::make_unique<ParallelFilesystemCommand>();
-		command->process(cin, cout, configuration);
+		command->process(STDIN_FILENO, STDOUT_FILENO, configuration);
 		resultCode = CLI::EXIT_CODE_SUCCESS;
 	} catch (RelpipeWriterException e) {
 		fwprintf(stderr, L"Caught Writer exception: %ls\n", e.getMessge().c_str());