diff --git a/core/types.hpp b/core/types.hpp
index 1bc8aa7a4f5080a9fa0d0b73e6e4af17a8e302c7..92a3dadf11e838b09059bb37ddda58983675939b 100644
--- a/core/types.hpp
+++ b/core/types.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include <map>
 #include <set>
 #include <string>