diff --git a/src/Config.cpp b/src/Config.cpp
index df339d23f..468ffea48 100644
--- a/src/Config.cpp
+++ b/src/Config.cpp
@@ -2,6 +2,7 @@
 
 #include "ParseSection.h"
 
+#include <iostream>
 #include <fstream>
 #include <boost/lexical_cast.hpp>