diff --git a/main/log.cpp b/main/log.cpp
index 5a2332f5eacfd070fdc39ad27b0bd295fdfe87c8..260f302d917268de8167c6f5e13433eaf85142c2 100644
--- a/main/log.cpp
+++ b/main/log.cpp
@@ -1,5 +1,6 @@
 #include "log.h"
 #include <iostream>
+#include <sstream>
 #include <tbox/base/json.hpp>
 #include <tbox/terminal/session.h>
 #include <tbox/util/fs.h>