diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index f772f354f..692b4c47a 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -1,4 +1,5 @@
 #include "PrintConfig.hpp"
+#include "Config.hpp"
 #include "I18N.hpp"
 
 #include <set>