diff --git a/sys/conf/options b/sys/conf/options
index 8f1dcaaa90b..8995b4dfef2 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -639,6 +639,7 @@ BUS_DEBUG		opt_bus.h
 
 # options for USB support
 USB_DEBUG		opt_usb.h
+USB_REQ_DEBUG		opt_usb.h
 USB_VERBOSE		opt_usb.h
 USB_EHCI_BIG_ENDIAN_DESC	opt_usb.h
 U3G_DEBUG		opt_u3g.h