diff --git a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
index b637df5b0..a120c1d8f 100644
--- a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
+++ b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
@@ -26,6 +26,8 @@
 
 #pragma once
 
+#include <cstddef>
+#include <cstdint>
 #include <set>
 #include <list>
 #include <vector>
diff --git a/src/common/perf_timer.h b/src/common/perf_timer.h
index 2a3cad075..3e53adcb8 100644
--- a/src/common/perf_timer.h
+++ b/src/common/perf_timer.h
@@ -28,6 +28,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <stdio.h>
 #include <memory>