diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c
index 9f30aa1f8a5d..d94aa7387608 100644
--- a/drivers/usb/misc/isight_firmware.c
+++ b/drivers/usb/misc/isight_firmware.c
@@ -41,7 +41,7 @@ static int isight_firmware_load(struct usb_interface *intf,
 	const struct firmware *firmware;
 	unsigned char *buf = kmalloc(50, GFP_KERNEL);
 	unsigned char data[4];
-	u8 *ptr;
+	const u8 *ptr;
 
 	if (!buf)
 		return -ENOMEM;