diff --git a/dcmihandler.hpp b/dcmihandler.hpp
index 6e64faf..29757ff 100644
--- a/dcmihandler.hpp
+++ b/dcmihandler.hpp
@@ -1,5 +1,4 @@
-#ifndef __HOST_IPMI_DCMI_HANDLER_H__
-#define __HOST_IPMI_DCMI_HANDLER_H__
+#pragma once
 
 #include "nlohmann/json.hpp"
 
@@ -628,5 +627,3 @@
 } __attribute__((packed));
 
 } // namespace dcmi
-
-#endif