diff --git a/src/libslic3r/GCodeReader.cpp b/src/libslic3r/GCodeReader.cpp
index 657f47f0ec..7b106463a1 100644
--- a/src/libslic3r/GCodeReader.cpp
+++ b/src/libslic3r/GCodeReader.cpp
@@ -2,6 +2,7 @@
 #include <boost/algorithm/string/classification.hpp>
 #include <boost/algorithm/string/split.hpp>
 #include <boost/nowide/fstream.hpp>
+#include <boost/nowide/cstdio.hpp>
 #include <fstream>
 #include <iostream>
 #include <iomanip>