diff --git a/common/cmd_flash.c b/common/cmd_flash.c
index a7f66dd..18d2250 100644
--- a/common/cmd_flash.c
+++ b/common/cmd_flash.c
@@ -342,7 +342,7 @@ int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 			puts ("Bad sector specification\n");
 			return 1;
 		}
-		printf ("Erase Flash Sectors %d-%d in Bank # %d ",
+		printf ("Erase Flash Sectors %d-%d in Bank # %zu ",
 			sect_first, sect_last, (info-flash_info)+1);
 		rcode = flash_erase(info, sect_first, sect_last);
 		return rcode;
@@ -534,7 +534,7 @@ int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 			puts ("Bad sector specification\n");
 			return 1;
 		}
-		printf("%sProtect Flash Sectors %d-%d in Bank # %d\n",
+		printf("%sProtect Flash Sectors %d-%d in Bank # %zu\n",
 			p ? "" : "Un-", sect_first, sect_last,
 			(info-flash_info)+1);
 		for (i = sect_first; i <= sect_last; i++) {
diff --git a/drivers/usb/usbdcore.c b/drivers/usb/usbdcore.c
index 808da9f..53ed669 100644
--- a/drivers/usb/usbdcore.c
+++ b/drivers/usb/usbdcore.c
@@ -552,7 +552,7 @@ struct urb *usbd_alloc_urb (struct usb_device_instance *device,
 	struct urb *urb;
 
 	if (!(urb = (struct urb *) malloc (sizeof (struct urb)))) {
-		usberr (" F A T A L:  malloc(%u) FAILED!!!!",
+		usberr (" F A T A L:  malloc(%zu) FAILED!!!!",
 			sizeof (struct urb));
 		return NULL;
 	}