diff --git a/include/api.hpp b/include/api.hpp
index 9741560..01a7aff 100644
--- a/include/api.hpp
+++ b/include/api.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <cstdint>
+#include <cstddef>
 
 struct SolverParameters{
     double k1;
diff --git a/src/main.cpp b/src/main.cpp
index d409e47..efe710d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6,6 +6,7 @@
 #include <stdexcept>
 #include <string>
 #include <vector>
+#include <algorithm>
 
 #if defined(_WIN32)
 #include <windows.h>