diff --git a/src/libnm-base/nm-ethtool-utils-base.h b/src/libnm-base/nm-ethtool-utils-base.h
index fa9c30715..3656ed3f9 100644
--- a/src/libnm-base/nm-ethtool-utils-base.h
+++ b/src/libnm-base/nm-ethtool-utils-base.h
@@ -3,7 +3,7 @@
  * Copyright (C) 2018 Red Hat, Inc.
  */
 
-#ifndef __NM_ETHTOOL_UTILS_H__
+#ifndef __NM_ETHTOOL_UTILS_H__ /* lgtm[cpp/duplicate-include-guard] */
 #define __NM_ETHTOOL_UTILS_H__
 
 G_BEGIN_DECLS
diff --git a/src/libnm-client-public/nm-ethtool-utils.h b/src/libnm-client-public/nm-ethtool-utils.h
index fa9c30715..3656ed3f9 100644
--- a/src/libnm-client-public/nm-ethtool-utils.h
+++ b/src/libnm-client-public/nm-ethtool-utils.h
@@ -3,7 +3,7 @@
  * Copyright (C) 2018 Red Hat, Inc.
  */
 
-#ifndef __NM_ETHTOOL_UTILS_H__
+#ifndef __NM_ETHTOOL_UTILS_H__ /* lgtm[cpp/duplicate-include-guard] */
 #define __NM_ETHTOOL_UTILS_H__
 
 G_BEGIN_DECLS