diff --git a/include/lib/optee_utils.h b/include/lib/optee_utils.h
index 3d35b19..b13c450 100644
--- a/include/lib/optee_utils.h
+++ b/include/lib/optee_utils.h
@@ -3,8 +3,8 @@
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
-#ifndef __OPTEE_UTILS_H__
-#define __OPTEE_UTILS_H__
+#ifndef OPTEE_UTILS_H
+#define OPTEE_UTILS_H
 
 #include <bl_common.h>
 
@@ -12,4 +12,4 @@
 	image_info_t *pager_image_info,
 	image_info_t *paged_image_info);
 
-#endif /* __OPTEE_UTILS_H__ */
+#endif /* OPTEE_UTILS_H */