1 files changed, 3 insertions, 3 deletions
diff --git a/lib/fmt.h b/lib/fmt.h
index babaa52..24ca7b0 100644
--- a/lib/fmt.h
+++ b/lib/fmt.h
@@ -42,8 +42,8 @@
  *  - specifiers: d i o u x X c s p n %
  */
 
-#ifndef _FMT_H
-#define _FMT_H
+#ifndef FMT_H
+#define FMT_H
 
 #include <stdarg.h>
 #include <stddef.h>
@@ -66,4 +66,4 @@ int fmt_sscanf(const char *str, const char *format, ...)
 int fmt_vsscanf(const char *str, const char *format, va_list ap)
     __attribute__((format(scanf, 2, 0)));
 
-#endif /* _FMT_H */
+#endif /* FMT_H */