diff --git a/src/slic3r/GUI/GUI_Utils.hpp b/src/slic3r/GUI/GUI_Utils.hpp
index 9da6bc8d8..25cf25b16 100644
--- a/src/slic3r/GUI/GUI_Utils.hpp
+++ b/src/slic3r/GUI/GUI_Utils.hpp
@@ -16,6 +16,7 @@
 #include <wx/panel.h>
 #include <wx/dcclient.h>
 #include <wx/debug.h>
+#include <wx/settings.h>
 
 class wxCheckBox;
 class wxTopLevelWindow;