</packing>
</child>
<child>
- <object class="PsppireHButtonBox" id="psppire-hbuttonbox1">
+ <object class="PsppireButtonbox" id="psppire-hbuttonbox1">
+ <property name="orientation">horizontal</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="border_width">5</property>