diff --git a/tools/usb/usbip/libsrc/usbip_device_driver.c b/tools/usb/usbip/libsrc/usbip_device_driver.c
index e059b7d1ec5befd1af675361f70b762d9075bbda..b2dac82975af6f17b139cbc7e990c8c2733b354f 100644
--- a/tools/usb/usbip/libsrc/usbip_device_driver.c
+++ b/tools/usb/usbip/libsrc/usbip_device_driver.c
@@ -77,7 +77,7 @@ int read_usb_vudc_device(struct udev_device *sdev, struct usbip_usb_device *dev)
 	const char *path, *name;
 	char filepath[SYSFS_PATH_MAX];
 	struct usb_device_descriptor descr;
-	unsigned i;
+	unsigned int i;
 	FILE *fd = NULL;
 	struct udev_device *plat;
 	const char *speed;