diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index 05001b0ef3..1f2258d06d 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -1074,6 +1074,8 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                     <property name="vexpand">1</property>
                                     <property name="hscrollbar-policy">never</property>
                                     <property name="vscrollbar-policy">automatic</property>
+                                    <property name="propagate-natural-height">1</property>
+                                    <property name="propagate-natural-width">1</property>
                                     <child>
                                       <object class="GtkBox">
                                         <property name="orientation">vertical</property>