diff --git a/src/util/config/config.h b/src/util/config/config.h
index eb849254..8bf4739e 100644
--- a/src/util/config/config.h
+++ b/src/util/config/config.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <unordered_map>
 
diff --git a/src/util/util_bit.h b/src/util/util_bit.h
index f4bb7a44..712be4be 100644
--- a/src/util/util_bit.h
+++ b/src/util/util_bit.h
@@ -29,6 +29,7 @@
 #include "util_likely.h"
 #include "util_math.h"
 
+#include <cstdint>
 #include <cstring>
 #include <iterator>
 #include <type_traits>