--- a/src/FilesystemCommand.h	Mon Jan 20 23:47:54 2020 +0100
+++ b/src/FilesystemCommand.h	Tue Jan 21 00:19:56 2020 +0100
@@ -75,7 +75,7 @@
 
 	virtual ~FilesystemCommand() = default;
 
-	virtual void process(std::istream& input, std::ostream& output, Configuration& configuration) = 0;
+	virtual void process(int inputFD, int outputFD, Configuration& configuration) = 0;
 };
 
 }