Don't use reserved identifiers

See C99 7.1.3 Reserved identifiers.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/sw.h b/src/sw.h
index 91488c3..d43ea1c 100644
--- a/src/sw.h
+++ b/src/sw.h
@@ -23,12 +23,12 @@
  * Stopwatch demo application.
  */
 
-#ifndef _SW_H
-#define _SW_H
+#ifndef SW_H
+#define SW_H
 
 /*
  * Initialize the sw module.
  */
 void sw_setup(void);
 
-#endif /* _SW_H */
+#endif /* SW_H */