1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib.rs b/src/lib.rs
index 42df819..71a3568 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,8 +1,9 @@
 #![feature(iterator_try_collect)]
- 
+
 pub mod day_01;
 pub mod day_02;
 pub mod day_03;
+pub mod day_04;
 
 pub trait Problem {
     const DAY: u8;