diff --git a/2020/src/lib.rs b/2020/src/lib.rs
index 9d642fc..f3b6e48 100644
--- a/2020/src/lib.rs
+++ b/2020/src/lib.rs
@@ -3,6 +3,7 @@ use std::io::Read;
 mod common;
 mod day01;
 mod day02;
+mod day03;
 
 pub trait Solution {
     fn part1(&mut self, input: &mut dyn Read) -> String;