1 files changed, 1 insertions, 1 deletions

diff --git a/2016/src/day03.cpp b/2016/src/day03.cpp
index fad26b8..5f3c58b 100644
--- a/2016/src/day03.cpp
+++ b/2016/src/day03.cpp
@@ -8,7 +8,7 @@
 using namespace std;
 
 vector<array<long, 3>>
-read_file(string_view filename)
+read_file(const string& filename)
 {
         fstream                input{ filename };
         vector<array<long, 3>> result;