1 files changed, 1 insertions, 0 deletions

diff --git a/base/md5.h b/base/md5.h
index 227e008..5ab6e32 100644
--- a/base/md5.h
+++ b/base/md5.h
@@ -4,6 +4,7 @@
 
 #ifndef BASE_MD5_H_
 #define BASE_MD5_H_
+#pragma once
 
 #include <string>