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-rw-r--r--lib/sys/io.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/sys/io.h b/lib/sys/io.h
index 3048ebe..8086869 100644
--- a/lib/sys/io.h
+++ b/lib/sys/io.h
@@ -1,5 +1,5 @@
-#ifndef IO_H
-#define IO_H
+#ifndef IO_SYS_H
+#define IO_SYS_H
#include "write.h"
#include "read.h"