diff --git a/include/SFML/System/String.hpp b/include/SFML/System/String.hpp
index 5a8c576a..0a54628d 100644
--- a/include/SFML/System/String.hpp
+++ b/include/SFML/System/String.hpp
@@ -30,6 +30,7 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/System/Export.hpp>
 #include <SFML/System/Utf.hpp>
+#include <iterator>
 #include <locale>
 #include <string>