diff --git a/lib/efi_loader/capsule_esl.dtsi.in b/lib/efi_loader/capsule_esl.dtsi.in
index 61a9f2b25e9..bc7db836faa 100644
--- a/lib/efi_loader/capsule_esl.dtsi.in
+++ b/lib/efi_loader/capsule_esl.dtsi.in
@@ -1,9 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0+
-/**
+/*
  * Devicetree file with the public key EFI Signature List(ESL)
  * node. This file is used to generate the dtsi file to be
  * included into the DTB.
-*/
+ */
 / {
 	signature {
 		capsule-key = /incbin/("ESL_BIN_FILE");