diff --git a/gio/gapplicationimpl-dbus.c b/gio/gapplicationimpl-dbus.c
index 08db71340..553cd4a7a 100644
--- a/gio/gapplicationimpl-dbus.c
+++ b/gio/gapplicationimpl-dbus.c
@@ -35,112 +35,65 @@
 #include "gdbusmethodinvocation.h"
 
 /* DBus Interface definition {{{1 */
-static const GDBusArgInfo platform_data_arg = { -1, (gchar *) "platform_data", (gchar *) "a{sv}" };
 
-static const GDBusArgInfo open_uris_arg = { -1, (gchar *) "uris", (gchar *) "as" };
-static const GDBusArgInfo open_hint_arg = { -1, (gchar *) "hint", (gchar *) "s" };
+static GDBusInterfaceInfo *
+get_interface (const gchar *name)
+{
+  static GDBusInterfaceInfo *org_gtk_Application;
+  static GDBusInterfaceInfo *org_gtk_private_CommandLine;
 
-static const GDBusArgInfo invoke_action_name_arg = { -1, (gchar *) "name", (gchar *) "s" };
-static const GDBusArgInfo invoke_action_args_arg = { -1, (gchar *) "args", (gchar *) "v" };
+  if (org_gtk_Application == NULL)
+    {
+      GError *error = NULL;
+      GDBusNodeInfo *info;
 
-static const GDBusArgInfo cmdline_path_arg = { -1, (gchar *) "path", (gchar *) "o" };
-static const GDBusArgInfo cmdline_arguments_arg = { -1, (gchar *) "arguments", (gchar *) "aay" };
-static const GDBusArgInfo cmdline_exit_status_arg = { -1, (gchar *) "exit_status", (gchar *) "i" };
+      info = g_dbus_node_info_new_for_xml (
+        "<node>"
+        "  <interface name='org.gtk.Application'>"
+        "    <method name='Activate'>"
+        "      <arg type='a{sv}' name='platform_data' direction='in'/>"
+        "    </method>"
+        "    <method name='Open'>"
+        "      <arg type='as' name='uris' direction='in'/>"
+        "      <arg type='s' name='hint' direction='in'/>"
+        "      <arg type='a{sv}' name='platform_data' direction='in'/>"
+        "    </method>"
+        "    <method name='CommandLine'>"
+        "      <arg type='o' name='path' direction='in'/>"
+        "      <arg type='aay' name='arguments' direction='in'/>"
+        "      <arg type='a{sv}' name='platform_data' direction='in'/>"
+        "      <arg type='i' name='exit_status' direction='out'/>"
+        "    </method>"
+        "  </interface>"
+        "  <interface name='org.gtk.private.CommandLine'>"
+        "    <method name='Print'>"
+        "      <arg type='s' name='message' direction='in'/>"
+        "    </method>"
+        "    <method name='PrintError'>"
+        "      <arg type='s' name='message' direction='in'/>"
+        "    </method>"
+        "  </interface>"
+        "</node>", &error);
 
-static const GDBusArgInfo *activate_in[] = { &platform_data_arg, NULL };
-static const GDBusArgInfo *activate_out[] = { NULL };
+      if (info == NULL)
+        g_error ("%s\n", error->message);
 
-static const GDBusArgInfo *open_in[] = { &open_uris_arg, &open_hint_arg, &platform_data_arg, NULL };
-static const GDBusArgInfo *open_out[] = { NULL };
+      org_gtk_Application = g_dbus_node_info_lookup_interface (info, "org.gtk.Application");
+      g_assert (org_gtk_Application != NULL);
+      g_dbus_interface_info_ref (org_gtk_Application);
 
-static const GDBusArgInfo *cmdline_in[] = { &cmdline_path_arg, &cmdline_arguments_arg, &platform_data_arg, NULL };
-static const GDBusArgInfo *cmdline_out[] = { &cmdline_exit_status_arg, NULL };
+      org_gtk_private_CommandLine = g_dbus_node_info_lookup_interface (info, "org.gtk.private.CommandLine");
+      g_assert (org_gtk_private_CommandLine != NULL);
+      g_dbus_interface_info_ref (org_gtk_private_CommandLine);
 
-static const GDBusMethodInfo activate_method = {
-  -1, (gchar *) "Activate",
-  (GDBusArgInfo **) activate_in,
-  (GDBusArgInfo **) activate_out
-};
+      g_dbus_node_info_unref (info);
+    }
 
-static const GDBusMethodInfo open_method = {
-  -1, (gchar *) "Open",
-  (GDBusArgInfo **) open_in,
-  (GDBusArgInfo **) open_out
-};
-
-static const GDBusMethodInfo command_line_method = {
-  -1, (gchar *) "CommandLine",
-  (GDBusArgInfo **) cmdline_in,
-  (GDBusArgInfo **) cmdline_out
-};
-
-static const GDBusMethodInfo *application_methods[] = {
-  &activate_method, &open_method, &command_line_method, NULL
-};
-
-const GDBusInterfaceInfo org_gtk_Application = {
-  -1, (gchar *) "org.gtk.Application",
-  (GDBusMethodInfo **) application_methods
-};
-
-static const GDBusArgInfo list_arg = { -1, (gchar *) "list", (gchar *) "a(savbav)" };
-static const GDBusArgInfo *describe_all_out[] = { &list_arg, NULL };
-
-static const GDBusArgInfo action_name_arg = { -1, (gchar *) "action_name", (gchar *) "s" };
-static const GDBusArgInfo value_arg = { -1, (gchar *) "value", (gchar *) "v" };
-static const GDBusArgInfo *set_action_state_in[] = { &action_name_arg, &value_arg, &platform_data_arg, NULL };
-
-static const GDBusArgInfo parameter_arg = { -1, (gchar *) "parameter", (gchar *) "av" };
-static const GDBusArgInfo *activate_action_in[] = { &action_name_arg, &parameter_arg, &platform_data_arg, NULL };
-
-static const GDBusMethodInfo describe_all_method = {
-  -1, (gchar *) "DescribeAll", NULL,
-  (GDBusArgInfo **) describe_all_out
-};
-
-static const GDBusMethodInfo set_action_state_method = {
-  -1, (gchar *) "SetState",
-  (GDBusArgInfo **) set_action_state_in
-};
-
-static const GDBusMethodInfo activate_action_method = {
-  -1, (gchar *) "Activate",
-  (GDBusArgInfo **) activate_action_in
-};
-
-static const GDBusMethodInfo *actions_methods[] = {
-  &describe_all_method, &set_action_state_method, &activate_action_method, NULL
-};
-
-const GDBusInterfaceInfo org_gtk_Actions = {
-  -1, (gchar *) "org.gtk.Actions",
-  (GDBusMethodInfo **) actions_methods
-};
-
-static const GDBusArgInfo message_arg = { -1, (gchar *) "message", (gchar *) "s" };
-static const GDBusArgInfo *print_in[] = { &message_arg, NULL };
-static const GDBusArgInfo *print_out[] = { NULL };
-
-static const GDBusMethodInfo stdout_method = {
-  -1, (gchar *) "Print",
-  (GDBusArgInfo **) print_in,
-  (GDBusArgInfo **) print_out
-};
-
-static const GDBusMethodInfo stderr_method = {
-  -1, (gchar *) "PrintError",
-  (GDBusArgInfo **) print_in,
-  (GDBusArgInfo **) print_out
-};
-
-static const GDBusMethodInfo *cmdline_methods[] = {
-  &stdout_method, &stderr_method, NULL
-};
-
-const GDBusInterfaceInfo org_gtk_private_Cmdline = {
-  -1, (gchar *) "org.gtk.private.CommandLine",
-  (GDBusMethodInfo **) cmdline_methods
-};
+  if (strcmp (name, "org.gtk.Application") == 0)
+    return org_gtk_Application;
+  else
+    return org_gtk_private_CommandLine;
+}
 
 /* GApplication implementation {{{1 */
 struct _GApplicationImpl
@@ -614,8 +567,7 @@ g_application_impl_register (GApplication       *application,
       impl->object_id =
         g_dbus_connection_register_object (impl->session_bus,
                                            impl->object_path,
-                                           (GDBusInterfaceInfo *)
-                                             &org_gtk_Application,
+                                           get_interface ("org.gtk.Application"),
                                            &vtable, impl, NULL, error);
 
       if (impl->object_id == 0)
@@ -892,8 +844,7 @@ g_application_impl_command_line (GApplicationImpl  *impl,
 
   object_id = g_dbus_connection_register_object (impl->session_bus,
                                                  object_path,
-                                                 (GDBusInterfaceInfo *)
-                                                   &org_gtk_private_Cmdline,
+                                                 get_interface ("org.gtk.private.CommandLine"),
                                                  &vtable, &data, NULL, NULL);
   /* In theory we should try other paths... */
   g_assert (object_id != 0);