diff --git a/test/beast/core/file_test.hpp b/test/beast/core/file_test.hpp
index 0d51c6ae..68e43f5c 100644
--- a/test/beast/core/file_test.hpp
+++ b/test/beast/core/file_test.hpp
@@ -16,11 +16,11 @@
 #include <boost/filesystem/path.hpp>
 #include <boost/filesystem/operations.hpp>
 #include <boost/filesystem/fstream.hpp>
-#include <cstdio>
 #include <fstream>
-#include <string>
 #include <iterator>
+#include <string>
 #include <type_traits>
+#include <vector>
 
 namespace boost {
 namespace beast {