diff --git a/src/libslic3r/Config.hpp b/src/libslic3r/Config.hpp
index 2d8d049ba..0a2fbcb5f 100644
--- a/src/libslic3r/Config.hpp
+++ b/src/libslic3r/Config.hpp
@@ -13,6 +13,7 @@
 #include "libslic3r.h"
 #include "Point.hpp"
 
+#include <boost/format.hpp>
 #include <boost/property_tree/ptree.hpp>
 
 namespace Slic3r {