diff --git a/src/contrib/epee/include/serialization/keyvalue_serialization_overloads.h b/src/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
index fc8b90a..5757d60 100644
--- a/src/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
+++ b/src/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
@@ -26,6 +26,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <set>
 #include <list>
 #include <vector>
diff --git a/src/serialization/binary_archive.h b/src/serialization/binary_archive.h
index f28e45c..1671ed5 100644
--- a/src/serialization/binary_archive.h
+++ b/src/serialization/binary_archive.h
@@ -48,7 +48,7 @@ template <>
 struct binary_archive<false> : public binary_archive_base<std::istream, false>
 {
   explicit binary_archive(stream_type &s) : base_type(s) {
-    stream_type::streampos pos = stream_.tellg();
+    auto pos = stream_.tellg();
     stream_.seekg(0, std::ios_base::end);
     eof_pos_ = stream_.tellg();
     stream_.seekg(pos);