diff --git a/src/font.hpp b/src/font.hpp
index 56f6c5c..9c68db6 100644
--- a/src/font.hpp
+++ b/src/font.hpp
@@ -18,6 +18,7 @@
 #define FONT_HPP
 
 #include <iostream>
+#include <cstdint>
 #include <array>
 
 #include <SDL2/SDL.h>
diff --git a/src/game.hpp b/src/game.hpp
index 6c771b1..9476148 100644
--- a/src/game.hpp
+++ b/src/game.hpp
@@ -18,6 +18,7 @@
 #define GAME_HPP
 
 #include <memory>
+#include <cstdint>
 
 #include <SDL2/SDL_ttf.h>
 #include <SDL2/SDL_mixer.h>
diff --git a/src/image.hpp b/src/image.hpp
index ce645fb..cde7a5b 100644
--- a/src/image.hpp
+++ b/src/image.hpp
@@ -17,6 +17,7 @@
 #ifndef IMAGE_HPP
 #define IMAGE_HPP
 
+#include <cstdint>
 #include <iostream>
 #include <array>
 
diff --git a/src/paddle.hpp b/src/paddle.hpp
index c736f7c..a726b3a 100644
--- a/src/paddle.hpp
+++ b/src/paddle.hpp
@@ -17,6 +17,8 @@
 #ifndef PADDLE_HPP
 #define PADDLE_HPP
 
+#include <cstdint>
+
 #include <SDL2/SDL.h>
 
 #include "window.hpp"
diff --git a/src/window.hpp b/src/window.hpp
index 1926e79..0e5ac6a 100644
--- a/src/window.hpp
+++ b/src/window.hpp
@@ -17,6 +17,7 @@
 #ifndef WINDOW_HPP
 #define WINDOW_HPP
 
+#include <cstdint>
 #include <iostream>
 #include <array>