diff --git a/day5/p2.c b/day5/p2.c
index 0ec5f35..444b0fe 100644
--- a/day5/p2.c
+++ b/day5/p2.c
@@ -6,9 +6,6 @@
 #include <stdbool.h>
 
 
-#define ABS(n) ((n < 0) ? n * -1 : n)
-
-
 uint64_t parse_number(char *end);
 
 #define MAPS_LEN 7