diff --git a/xs/src/slic3r/GUI/GUI_Preview.cpp b/src/slic3r/GUI/GUI_Preview.cpp
similarity index 100%
rename from xs/src/slic3r/GUI/GUI_Preview.cpp
rename to src/slic3r/GUI/GUI_Preview.cpp
diff --git a/xs/src/slic3r/GUI/GUI_Preview.hpp b/src/slic3r/GUI/GUI_Preview.hpp
similarity index 100%
rename from xs/src/slic3r/GUI/GUI_Preview.hpp
rename to src/slic3r/GUI/GUI_Preview.hpp
diff --git a/xs/src/slic3r/GUI/GUI_PreviewIface.cpp b/src/slic3r/GUI/GUI_PreviewIface.cpp
similarity index 100%
rename from xs/src/slic3r/GUI/GUI_PreviewIface.cpp
rename to src/slic3r/GUI/GUI_PreviewIface.cpp
diff --git a/xs/src/slic3r/GUI/GUI_PreviewIface.hpp b/src/slic3r/GUI/GUI_PreviewIface.hpp
similarity index 100%
rename from xs/src/slic3r/GUI/GUI_PreviewIface.hpp
rename to src/slic3r/GUI/GUI_PreviewIface.hpp