Index: uspace/drv/usbhub/usbhub.c
===================================================================
--- uspace/drv/usbhub/usbhub.c	(revision 564a2b33fa6a9365cde0a9228b5722048647e566)
+++ uspace/drv/usbhub/usbhub.c	(revision 74f00b6d84025d10f2385366580496754f90b606)
@@ -256,5 +256,5 @@
 		
 		for (port = 1; port <= hub_info->port_count; ++port) {
-			usb_log_debug("powering port %d\n",port);
+			usb_log_debug("Powering port %zu.\n",port);
 			opResult = usb_hub_set_port_feature(hub_info->control_pipe,
 			    port, USB_HUB_FEATURE_PORT_POWER);