HdyDialog and stack navigation

I'm not exactly sure if this is the right way to introduce a header for stack navigation to a HdyDialog:``

<interface>
  <object class="HdyDialog" id="dialog">
    <property name="valign">center</property>
    <child type="titlebar">
      <object class="HdyTitleBar">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <child>
          <object class="GtkStack" id="header_stack">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="transition_type">slide-left-right</property>
            <property name="visible-child-name" bind-source="panes_stack" bind-property="visible-child-name" bind-flags="bidirectional|sync-create"/>
            <child>
              <object class="GtkHeaderBar" id="header_view_settings">

but doing it this way throws a critical:

 ** (sm.puri.Chatty:3365): CRITICAL **: 09:28:19.411: update_titlebar: assertion 'GTK_IS_HEADER_BAR (titlebar)' failed

Thread 1 "chatty" received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff7ce19f5 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
(gdb) bt
#0  0x00007ffff7ce19f5 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffff7ce2d0d in g_logv () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff7ce2edf in g_log () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff71b3a98 in handle_size (self=0x555555ab83c0, parent=<optimized out>)
    at ../src/hdy-dialog.c:118