diff --git a/drivers/mag3110/include/mag3110_reg.h b/drivers/mag3110/include/mag3110_reg.h
index 928ba2c4d..81311aa3c 100644
--- a/drivers/mag3110/include/mag3110_reg.h
+++ b/drivers/mag3110/include/mag3110_reg.h
@@ -18,8 +18,8 @@
  *
  */
 
-#ifndef __MAG3110_REG_H__
-#define __MAG3110_REG_H__
+#ifndef MAG3110_REG_H
+#define MAG3110_REG_H
 
 #ifdef __cplusplus
 extern "C"