Index: uspace/lib/usbhost/src/bus.c
===================================================================
--- uspace/lib/usbhost/src/bus.c	(revision 1433ecda9b732f3f185f902feb26826ec2496e03)
+++ uspace/lib/usbhost/src/bus.c	(revision a69d42e063015b31f1b430429f3a03ea17fdc9de)
@@ -90,5 +90,5 @@
 	assert(dev->fun);
 
-	char buf[10] = { 0 }; /* usbxyz-ss */
+	char buf[12] = { 0 }; /* usbxyz-ss */
 	snprintf(buf, sizeof(buf), "usb%u-%cs",
 	    dev->address, usb_str_speed(dev->speed)[0]);