diff --git a/lib/meson.build b/lib/meson.build
index ffe7b1d..652283c 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -39,6 +39,13 @@ libmks_private_sources = [
       object_manager: true,
   ),
 
+  gnome.genmarshal('mks-marshal',
+              internal: true,
+                prefix: '_mks_marshal',
+               sources: ['mks-marshal.defs'],
+    valist_marshallers: true,
+  ),
+
   gnome.compile_resources(
     'mks-resources',
     'mks.gresource.xml',
diff --git a/lib/mks-marshal.defs b/lib/mks-marshal.defs
new file mode 100644
index 0000000..1f953dd
--- /dev/null
+++ b/lib/mks-marshal.defs
@@ -0,0 +1 @@
+VOID:INT,INT