diff --git a/tools/usb/ffs-test.c b/tools/usb/ffs-test.c
index bbe2e3a2ea62adabe32a0ed363b20dfac794d7e9..b9c7986316997b4f820ed1567a71ff911ae3d107 100644
--- a/tools/usb/ffs-test.c
+++ b/tools/usb/ffs-test.c
@@ -37,7 +37,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <linux/usb/functionfs.h>
+#include "../../include/linux/usb/functionfs.h"
 
 
 /******************** Little Endian Handling ********************************/
@@ -450,7 +450,7 @@ empty_out_buf(struct thread *ignore, const void *buf, size_t nbytes)
 		    len, expected, *p);
 		for (p = buf, len = 0; len < nbytes; ++p, ++len) {
 			if (0 == (len % 32))
-				fprintf(stderr, "%4d:", len);
+				fprintf(stderr, "%4zd:", len);
 			fprintf(stderr, " %02x", *p);
 			if (31 == (len % 32))
 				fprintf(stderr, "\n");