--- a/include/vcpkg/binarycaching.h
+++ b/include/vcpkg/binarycaching.h
@@ -18,6 +18,7 @@
 #include <vcpkg/packagespec.h>
 #include <vcpkg/versions.h>
 
+#include <atomic>
 #include <chrono>
 #include <iterator>
 #include <set>
--- a/src/vcpkg/base/downloads.cpp
+++ b/src/vcpkg/base/downloads.cpp
@@ -1,3 +1,5 @@
+#include <vcpkg/base/system-headers.h>
+
 #include <vcpkg/base/api-stable-format.h>
 #include <vcpkg/base/contractual-constants.h>
 #include <vcpkg/base/curl.h>
--- a/src/vcpkg/base/system.cpp
+++ b/src/vcpkg/base/system.cpp
@@ -11,6 +11,8 @@
 #include <vcpkg/base/system.h>
 #include <vcpkg/base/uuid.h>
 
+#include <thread>
+
 #if defined(__APPLE__)
 #include <sys/sysctl.h>
 #endif