diff --git a/ch9344.c b/ch9344.c
index 36402c0..cb3efc2 100644
--- a/ch9344.c
+++ b/ch9344.c
@@ -1251,7 +1251,11 @@ static void ch9344_port_shutdown(struct tty_port *port)
 	struct ch9344 *ch9344 = tty_get_portdata(ttyport);
 	int portnum = ttyport->portnum;
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0))
+	timer_delete(&ttyport->timer);
+#else
 	del_timer(&ttyport->timer);
+#endif
 	ch9344_set_control(ch9344, portnum, 0x00);
 	ch9344_set_control(ch9344, portnum, 0x10);
 	ttyport->isopen = false;