diff --git a/drivers/tty/n_tracesink.h b/drivers/tty/n_tracesink.h
index 1b846330c855..7031d515a700 100644
--- a/drivers/tty/n_tracesink.h
+++ b/drivers/tty/n_tracesink.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  n_tracesink.h - Kernel driver API to route trace data in kernel space.
  *