Index: uspace/app/virtusbkbd/virtusbkbd.c
===================================================================
--- uspace/app/virtusbkbd/virtusbkbd.c	(revision bbe78485cd8633d7413573caf386c2dc4d185762)
+++ uspace/app/virtusbkbd/virtusbkbd.c	(revision fa9b606e0a4d7d2b81ec316d32d2e9c5ba285fc1)
@@ -202,5 +202,5 @@
 int main(int argc, char * argv[])
 {
-	printf("Dump of report descriptor (%u bytes):\n", report_descriptor_size);
+	printf("Dump of report descriptor (%zu bytes):\n", report_descriptor_size);
 	size_t i;
 	for (i = 0; i < report_descriptor_size; i++) {