diff --git a/folly/stats/DigestBuilder.h b/folly/stats/DigestBuilder.h
index facad37a6a3..c6ef03a2279 100644
--- a/folly/stats/DigestBuilder.h
+++ b/folly/stats/DigestBuilder.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <memory>
+#include <vector>
 
 #include <folly/Memory.h>
 #include <folly/SpinLock.h>
diff --git a/folly/test/ConstexprMathTest.cpp b/folly/test/ConstexprMathTest.cpp
index 8a94d6e229e..afe40caac8f 100644
--- a/folly/test/ConstexprMathTest.cpp
+++ b/folly/test/ConstexprMathTest.cpp
@@ -16,6 +16,7 @@
 
 #include <folly/ConstexprMath.h>
 
+#include <array>
 #include <cmath>
 #include <limits>
 #include <type_traits>