Index: uspace/lib/drv/Makefile
===================================================================
--- uspace/lib/drv/Makefile	(revision 91db50ac4a0d8739daf1220f83a40c68c562e4cd)
+++ uspace/lib/drv/Makefile	(revision 1b22bd45ebc7f42217757e90fa6e5b57f6ed5d1d)
@@ -29,5 +29,5 @@
 
 USPACE_PREFIX = ../..
-EXTRA_CFLAGS = -Iinclude -I$(LIB_PREFIX)
+EXTRA_CFLAGS = -Iinclude -I$(LIBUSB_PREFIX)/include
 LIBRARY = libdrv