diff --git a/src/meson.build b/src/meson.build
index 4f4dfe0e4..7eb231be9 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -1322,6 +1322,9 @@ pkg.generate(libmutter,
     'apiversion=' + libmutter_api_version,
     'girdir=${libdir}/mutter-' + libmutter_api_version,
     'typelibdir=${libdir}/mutter-' + libmutter_api_version,
+    'have_x11=@0@'.format(have_x11),
+    'have_x11_client=@0@'.format(have_x11_client),
+    'have_wayland=@0@'.format(have_wayland),
   ],
   install_dir: pcdir,
 )