1 files changed, 1 insertions, 1 deletions

diff --git a/2016/src/day06.cpp b/2016/src/day06.cpp
index 32bf9cc..75592ca 100644
--- a/2016/src/day06.cpp
+++ b/2016/src/day06.cpp
@@ -11,7 +11,7 @@
 using namespace std;
 
 vector<string>
-read_file(string_view filename)
+read_file(const string& filename)
 {
         fstream input{ filename };