diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index f45bda7982..8474d08d76 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -518,6 +518,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                         </child>
                         <child>
                           <object class="GtkBox">
+                            <property name="hexpand">0</property>
                             <style>
                               <class name="linked"/>
                             </style>
@@ -1756,6 +1757,7 @@ microphone-sensitivity-medium-symbolic</property>
                             <property name="shadow-type">in</property>
                             <property name="hscrollbar-policy">never</property>
                             <property name="min-content-height">200</property>
+                            <property name="hexpand">0</property>
                             <child>
                               <object class="GtkListBox" id="listbox">
                                 <property name="selection-mode">none</property>
@@ -2479,7 +2481,6 @@ microphone-sensitivity-medium-symbolic</property>
                             <property name="hscrollbar-policy">never</property>
                             <property name="vscrollbar-policy">always</property>
                             <property name="height-request">300</property>
-                            <property name="halign">start</property>
                             <property name="shadow-type">in</property>
                             <child>
                               <object class="GtkTreeView" id="charletree">