diff --git a/Firmware/communication/interface_usb.cpp b/Firmware/communication/interface_usb.cpp
index cee94a99..28891a82 100644
--- a/Firmware/communication/interface_usb.cpp
+++ b/Firmware/communication/interface_usb.cpp
@@ -47,7 +47,6 @@ public:
     }
 } usb_packet_output;
 
-#if !defined(USB_PROTOCOL_NATIVE)
 class TreatPacketSinkAsStreamSink : public StreamSink {
 public:
     TreatPacketSinkAsStreamSink(PacketSink& output) : output_(output) {}
@@ -66,7 +65,6 @@ public:
 private:
     PacketSink& output_;
 } usb_stream_output(usb_packet_output);
-#endif
 
 #if defined(USB_PROTOCOL_NATIVE)
 BidirectionalPacketBasedChannel usb_channel(usb_packet_output);