diff --git a/include/dwarfs/checksum.h b/include/dwarfs/checksum.h
index 5b7234ac..6554acbf 100644
--- a/include/dwarfs/checksum.h
+++ b/include/dwarfs/checksum.h
@@ -24,6 +24,8 @@
 #include <cstddef>
 #include <memory>
 #include <stdexcept>
+#include <string>
+#include <vector>
 
 #include "dwarfs/error.h"
 
diff --git a/include/dwarfs/types.h b/include/dwarfs/types.h
index 706b7374..37425354 100644
--- a/include/dwarfs/types.h
+++ b/include/dwarfs/types.h
@@ -22,6 +22,8 @@
 #pragma once
 
 #include <cstdint>
+#include <iostream>
+#include <string>
 
 namespace dwarfs {