diff --git a/main.c b/main.c
index 42dc2d3..c75a91a 100644
--- a/main.c
+++ b/main.c
@@ -1,7 +1,8 @@
 #include <stdio.h>
 #include <math.h>
 #include <stdlib.h>
-#include "functions.h"
+#include "formulas.h"
+#include "matrices.h"
 
 // to compile use "gcc main.c -lm"