diff --git a/lib/cpp/src/protocol/TJSONProtocol.cpp b/lib/cpp/src/protocol/TJSONProtocol.cpp
index d2d56c1..b2ffeac 100644
--- a/lib/cpp/src/protocol/TJSONProtocol.cpp
+++ b/lib/cpp/src/protocol/TJSONProtocol.cpp
@@ -7,6 +7,7 @@
 #include "TJSONProtocol.h"
 
 #include <math.h>
+#include <boost/lexical_cast.hpp>
 #include "TBase64Utils.h"
 #include <transport/TTransportException.h>