diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 3828ed6d38a2..920d8e7536bd 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -97,7 +97,7 @@ static int mtu3_ep_enable(struct mtu3_ep *mep)
 				usb_endpoint_xfer_int(desc)) {
 			interval = desc->bInterval;
 			interval = clamp_val(interval, 1, 16) - 1;
-			burst = (max_packet & GENMASK(12, 11)) >> 11;
+			mult = (max_packet & GENMASK(12, 11)) >> 11;
 		}
 		break;
 	default: