diff --git storage/innobase/handler/i_s.cc.old storage/innobase/handler/i_s.cc
index be3ab7b..754b836 100644
--- a/storage/innobase/handler/i_s.cc
+++ b/storage/innobase/handler/i_s.cc
@@ -65,6 +65,8 @@ Created July 18, 2007 Vasil Dimov
 #include "btr0btr.h"
 #include "page0zip.h"
 
+#include <string>
+
 /** structure associates a name string with a file page type and/or buffer
 page state. */
 struct buf_page_desc_t{