diff --git a/binding.gyp b/binding.gyp
index 1989e3e..8b2c19d 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -66,11 +66,6 @@
                 "deps/milsko/src/draw.c",
                 "deps/milsko/src/default.c",
                 "deps/milsko/src/lowlevel.c",
-                "deps/milsko/src/backend/x11.c",
-                "deps/milsko/src/backend/classicmacos.c",
-                "deps/milsko/src/backend/gdi.c",
-                "deps/milsko/src/backend/wayland.c",
-                "deps/milsko/src/backend/call.c",
                 "deps/milsko/src/dialog/filechooser.c",
                 "deps/milsko/src/dialog/directorychooser.c",
                 "deps/milsko/src/dialog/colorpicker.c",