diff --git a/sdk/hginclude/utils.cpp b/sdk/hginclude/utils.cpp
index 13bf08d..953dfb4 100644
--- a/sdk/hginclude/utils.cpp
+++ b/sdk/hginclude/utils.cpp
@@ -707,7 +707,7 @@ namespace utils
 	}
 	int save_2_file(void* data, size_t len, const char* file, bool append)
 	{
-		FILE* dst = fopen(file, append ? "w+b" : "wb");
+		FILE* dst = fopen(file, append ? "a+b" : "wb");
 		int	err = 0;
 
 		if (!dst)