From 2edb53397fd854c218aeb7e07b6c7774211c74a7 Mon Sep 17 00:00:00 2001
From: Leonardo de Moura <leonardo@microsoft.com>
Date: Thu, 14 Aug 2014 18:19:17 -0700
Subject: [PATCH] fix(library/declaration_index): style

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
---
 src/library/declaration_index.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/library/declaration_index.cpp b/src/library/declaration_index.cpp
index f16aa6c35..80374cdaa 100644
--- a/src/library/declaration_index.cpp
+++ b/src/library/declaration_index.cpp
@@ -4,6 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 
 Author: Leonardo de Moura
 */
+#include <string>
 #include "library/declaration_index.h"
 
 namespace lean {