diff --git a/.gitignore b/.gitignore
index 342f845..99363e4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /.vscode/ipch/*
+/.vscode/settings.json
diff --git a/test/cloning_test.cpp b/test/cloning_test.cpp
index 138a38c..154751b 100644
--- a/test/cloning_test.cpp
+++ b/test/cloning_test.cpp
@@ -9,6 +9,7 @@
 #include <boost/detail/lightweight_test.hpp>
 #include <boost/detail/workaround.hpp>
 #include <string>
+#include <ios>
 
 typedef boost::error_info<struct my_tag,int> my_info;