diff --git a/src/Base/Vector.H b/src/Base/Vector.H
index 8b5ef1d7..85539237 100644
--- a/src/Base/Vector.H
+++ b/src/Base/Vector.H
@@ -9,6 +9,7 @@
 
 #include <AMReX_Vector.H>
 
+#include <cstdint>
 #include <memory>
 #include <sstream>
 #include <string>