2 files changed, 6 insertions, 6 deletions
diff --git a/os/nil/include/ch.h b/os/nil/include/ch.h
index b5fd825bd..dd548ab20 100644
--- a/os/nil/include/ch.h
+++ b/os/nil/include/ch.h
@@ -27,8 +27,8 @@
  * @{
  */
 
-#ifndef _CH_H_
-#define _CH_H_
+#ifndef CH_H
+#define CH_H
 
 #include "chconf.h"
 #include "chtypes.h"
@@ -1325,6 +1325,6 @@ extern "C" {
 #include "chmempools.h"
 #include "chheap.h"
 
-#endif /* _CH_H_ */
+#endif /* CH_H */
 
 /** @} */
diff --git a/os/nil/templates/chconf.h b/os/nil/templates/chconf.h
index 06518405f..92e72a128 100644
--- a/os/nil/templates/chconf.h
+++ b/os/nil/templates/chconf.h
@@ -25,8 +25,8 @@
  * @{
  */
 
-#ifndef _CHCONF_H_
-#define _CHCONF_H_
+#ifndef CHCONF_H
+#define CHCONF_H
 
 #define _CHIBIOS_NIL_CONF_
 
@@ -269,6 +269,6 @@
 /* Port-specific settings (override port settings defaulted in nilcore.h).   */
 /*===========================================================================*/
 
-#endif  /* _CHCONF_H_ */
+#endif  /* CHCONF_H */
 
 /** @} */