diff --git a/plat/mediatek/mt8173/drivers/spm/spm_mcdi.h b/plat/mediatek/mt8173/drivers/spm/spm_mcdi.h
index e29f565..7f3f96e 100644
--- a/plat/mediatek/mt8173/drivers/spm/spm_mcdi.h
+++ b/plat/mediatek/mt8173/drivers/spm/spm_mcdi.h
@@ -3,12 +3,12 @@
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
-#ifndef __SPM_MCDI_H__
-#define __SPM_MCDI_H__
+#ifndef SPM_MCDI_H
+#define SPM_MCDI_H
 
 void spm_mcdi_wakeup_all_cores(void);
 void spm_mcdi_prepare_for_mtcmos(void);
 void spm_mcdi_prepare_for_off_state(unsigned long mpidr, unsigned int afflvl);
 void spm_mcdi_finish_for_on_state(unsigned long mpidr, unsigned int afflvl);
 
-#endif /* __SPM_MCDI_H__ */
+#endif /* SPM_MCDI_H */