diff --git a/plug-ins/ui/plug-in-file-png.ui b/plug-ins/ui/plug-in-file-png.ui
index 71582f614e..97ccef0819 100644
--- a/plug-ins/ui/plug-in-file-png.ui
+++ b/plug-ins/ui/plug-in-file-png.ui
@@ -221,6 +221,7 @@
           <object class="GtkBox" id="box1">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
+            <property name="orientation">vertical</property>
             <child>
               <object class="GtkCheckButton" id="sv_exif">
                 <property name="label" translatable="yes">Save Exif data</property>