diff --git a/interfaces.hpp b/interfaces.hpp
index d9934db..c13c377 100644
--- a/interfaces.hpp
+++ b/interfaces.hpp
@@ -1,6 +1,9 @@
 #pragma once
 
 #include <chrono>
+#include <cstdint>
+#include <limits>
+#include <string>
 
 namespace pid_control
 {