diff --git a/firmware/usbstack/usb_storage.c b/firmware/usbstack/usb_storage.c
index 1fbfe5296d..c32c9df7f7 100644
--- a/firmware/usbstack/usb_storage.c
+++ b/firmware/usbstack/usb_storage.c
@@ -479,6 +479,7 @@ static void identify2inquiry(int lun)
     unsigned short* dest;
     unsigned short* src;
     unsigned short* identify = ata_get_identify();
+    (void)lun;
     memset(inquiry, 0, sizeof _inquiry);
     
     if (identify[82] & 4)