diff --git a/src/lib/cpp/include/datatypes.hh b/src/lib/cpp/include/datatypes.hh
index 2d5e1dd..ea0cd06 100644
--- a/src/lib/cpp/include/datatypes.hh
+++ b/src/lib/cpp/include/datatypes.hh
@@ -15,6 +15,7 @@
 #endif
 
 #include <array>
+#include <chrono>
 #include <iostream>
 #include <vector>
 #include <pybind11/pybind11.h>