diff --git a/twrpDigest.cpp b/twrpDigest.cpp
index fe0e067..0dd3ea9 100644
--- a/twrpDigest.cpp
+++ b/twrpDigest.cpp
@@ -1,5 +1,5 @@
 /*
-	Copyright 2012 bigbiff/Dees_Troy TeamWin
+	Copyright 2012 to 2016 bigbiff/Dees_Troy TeamWin
 	This file is part of TWRP/TeamWin Recovery Project.
 
 	TWRP is free software: you can redistribute it and/or modify
@@ -44,7 +44,7 @@
 
 using namespace std;
 
-void twrpDigest::setfn(string fn) {
+void twrpDigest::setfn(const string& fn) {
 	md5fn = fn;
 }