1 files changed, 2 insertions, 2 deletions

diff --git a/mutx.h b/mutx.h
index 0438cb9..4f6c950 100755..100644
--- a/mutx.h
+++ b/mutx.h
@@ -1,7 +1,7 @@
 // class mutx declaration.
 
-#ifndef s_mutx_H
-#define s_mutx_H
+#ifndef MUTX_H
+#define MUTX_H
 
 #include "incl.h"