diff --git a/test/file_mapping_test.cpp b/test/file_mapping_test.cpp
index b9851c9..abe97dd 100644
--- a/test/file_mapping_test.cpp
+++ b/test/file_mapping_test.cpp
@@ -9,6 +9,7 @@
 //////////////////////////////////////////////////////////////////////////////
 
 #include <boost/interprocess/detail/config_begin.hpp>
+#include <ios>       // for std::streamoff
 #include <fstream>
 #include <iostream>
 #include <boost/interprocess/file_mapping.hpp>