diff --git a/main.cpp b/main.cpp
index 301c2ca..8a9ba26 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,6 +1,6 @@
 #include <iostream>
 #include <string>
-#include <math.h>
+#include <cmath>
 using namespace std;
 
 string version = "2.0";