diff --git a/intern/locale/boost_locale_wrapper.cpp b/intern/locale/boost_locale_wrapper.cpp
index fb0e194352a..80e8d89799a 100644
--- a/intern/locale/boost_locale_wrapper.cpp
+++ b/intern/locale/boost_locale_wrapper.cpp
@@ -6,6 +6,7 @@
  */
 
 #include <boost/locale.hpp>
+#include <iostream>
 #include <stdio.h>
 
 #include "boost_locale_wrapper.h"