diff --git a/important.hpp b/important.hpp
index aa32ec0..e89a921 100644
--- a/important.hpp
+++ b/important.hpp
@@ -1,6 +1,6 @@
 #ifndef IMPORTANT_HPP_INCLUDED
 #define IMPORTANT_HPP_INCLUDED
-#include <String>
+#include <string>
 #include <memory>
 
 extern int window_x;
diff --git a/main.cpp b/main.cpp
index ec12271..91f1139 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,6 +1,6 @@
 #include <SFML/Graphics.hpp>
 #include <iostream>
-#include <String>
+#include <string>
 #include <stdlib.h>
 #include <time.h>