diff --git a/contrib/epee/include/storages/portable_storage_val_converters.h b/contrib/epee/include/storages/portable_storage_val_converters.h
index 96b0c02..5eb9acf 100644
--- a/contrib/epee/include/storages/portable_storage_val_converters.h
+++ b/contrib/epee/include/storages/portable_storage_val_converters.h
@@ -37,6 +37,7 @@
 #include "misc_log_ex.h"
 
 #include <boost/lexical_cast.hpp>
+#include <boost/numeric/conversion/bounds.hpp>
 #include <typeinfo>
 #include <iomanip>
 
diff --git a/src/common/boost_serialization_helper.h b/src/common/boost_serialization_helper.h
index 4a90310..cddd5d8 100644
--- a/src/common/boost_serialization_helper.h
+++ b/src/common/boost_serialization_helper.h
@@ -110,7 +110,8 @@ namespace tools
     catch(...)
     {
       // if failed, try reading in unportable mode
-      boost::filesystem::copy_file(file_path, file_path + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+      //boost::filesystem::copy_file(file_path, file_path + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+      tools::copy_file(file_path, file_path + ".unportable");
       data_file.close();
       data_file.open( file_path, std::ios_base::binary | std::ios_base::in);
       if(data_file.fail())
diff --git a/src/common/combinator.h b/src/common/combinator.h
index 0d35e47..f322aeb 100644
--- a/src/common/combinator.h
+++ b/src/common/combinator.h
@@ -34,6 +34,7 @@
 #include <iostream>
 #include <vector>
 #include <stdexcept>
+#include <cstdint>
 
 namespace tools {
 
diff --git a/src/common/util.cpp b/src/common/util.cpp
index f0de73a..1f0f021 100644
--- a/src/common/util.cpp
+++ b/src/common/util.cpp
@@ -115,6 +115,24 @@ static int flock_exnb(int fd)
 
 namespace tools
 {
+
+  void copy_file(const std::string& from, const std::string& to)
+  {
+    using boost::filesystem::path;
+  #if BOOST_VERSION < 107400
+    // Remove this preprocessor if/else when we are bumping the boost version.
+    boost::filesystem::copy_file(
+        path(from),
+        path(to),
+        boost::filesystem::copy_option::overwrite_if_exists);
+  #else
+    boost::filesystem::copy_file(
+        path(from),
+        path(to),
+        boost::filesystem::copy_options::overwrite_existing);
+  #endif
+  }
+  
   std::function<void(int)> signal_handler::m_handler;
 
   private_file::private_file() noexcept : m_handle(), m_filename() {}
diff --git a/src/common/util.h b/src/common/util.h
index f489594..138b901 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -67,6 +67,8 @@ namespace tools
     }
   };
 
+  void copy_file(const std::string& from, const std::string& to);
+  
   //! A file restricted to process owner AND process. Deletes file on destruction.
   class private_file {
     std::unique_ptr<std::FILE, close_file> m_handle;
diff --git a/src/p2p/net_peerlist.cpp b/src/p2p/net_peerlist.cpp
index 3e132c9..c803b0c 100644
--- a/src/p2p/net_peerlist.cpp
+++ b/src/p2p/net_peerlist.cpp
@@ -42,6 +42,7 @@
 #include <boost/serialization/version.hpp>
 
 #include "net_peerlist_boost_serialization.h"
+#include "common/util.h"
 
 
 namespace nodetool
@@ -200,7 +201,7 @@ namespace nodetool
     if (!out)
     {
       // if failed, try reading in unportable mode
-      boost::filesystem::copy_file(path, path + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+      tools::copy_file(path, path + ".unportable");
       src_file.close();
       src_file.open( path , std::ios_base::binary | std::ios_base::in);
       if(src_file.fail())
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 56b8427..dc7c3e9 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -5909,8 +5909,9 @@ void wallet2::load(const std::string& wallet_, const epee::wipeable_string& pass
           catch (...)
           {
             LOG_PRINT_L0("Failed to open portable binary, trying unportable");
-            if (use_fs) boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
-            std::stringstream iss;
+            //if (use_fs) boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+            if (use_fs) tools::copy_file(m_wallet_file, m_wallet_file + ".unportable");
+	    std::stringstream iss;
             iss.str("");
             iss << cache_data;
             boost::archive::binary_iarchive ar(iss);
@@ -5931,7 +5932,8 @@ void wallet2::load(const std::string& wallet_, const epee::wipeable_string& pass
       catch (...)
       {
         LOG_PRINT_L0("Failed to open portable binary, trying unportable");
-        if (use_fs) boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+        //if (use_fs) boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+	if (use_fs) tools::copy_file(m_wallet_file, m_wallet_file + ".unportable");
         std::stringstream iss;
         iss.str("");
         iss << cache_file_buf;
diff --git a/tests/core_tests/chaingen_serialization.h b/tests/core_tests/chaingen_serialization.h
index 7eac398..aeaa255 100644
--- a/tests/core_tests/chaingen_serialization.h
+++ b/tests/core_tests/chaingen_serialization.h
@@ -35,6 +35,7 @@
 #include <boost/archive/portable_binary_iarchive.hpp>
 #include <boost/filesystem/operations.hpp>
 
+#include "common/util.h"
 
 namespace tools
 {
@@ -110,7 +111,8 @@ namespace tools
     catch(...)
     {
       // if failed, try reading in unportable mode
-      boost::filesystem::copy_file(file_path, file_path + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+      //boost::filesystem::copy_file(file_path, file_path + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
+      tools::copy_file(file_path, file_path + ".unportable");
       data_file.close();
       data_file.open( file_path, std::ios_base::binary | std::ios_base::in);
       if(data_file.fail())