Index: uspace/lib/usb/src/dump.c
===================================================================
--- uspace/lib/usb/src/dump.c	(revision 585635856440deab73ad5891daab8fa87901aa68)
+++ uspace/lib/usb/src/dump.c	(revision c188c62aa2ffa4dc0f6451547f7cdb1966d6eb8d)
@@ -35,4 +35,5 @@
 #include <stdlib.h>
 #include <stdio.h>
+#include <stddef.h>
 #include <usb/debug.h>
 #include <usb/descriptor.h>