diff --git a/hgdriver/hgdev/common_setting.h b/hgdriver/hgdev/common_setting.h
index 98be51f..6dd21a6 100644
--- a/hgdriver/hgdev/common_setting.h
+++ b/hgdriver/hgdev/common_setting.h
@@ -1,4 +1,4 @@
-#pragma once
+#pragma once
 
 // hg_scanner_cfg is the base configuration definitions
 //