diff --git a/src/runtime.cpp b/src/runtime.cpp
index afa1024..2980047 100644
--- a/src/runtime.cpp
+++ b/src/runtime.cpp
@@ -1,5 +1,6 @@
 #include <iostream>
 #include <cmath>
+#include <algorithm>
 
 #include "runtime.hpp"
 #include "exceptions.hpp"