diff --git a/demos/gtk-demo/font-features.ui b/demos/gtk-demo/font-features.ui
index b3da9932b3..aae2615558 100644
--- a/demos/gtk-demo/font-features.ui
+++ b/demos/gtk-demo/font-features.ui
@@ -8,7 +8,7 @@
     <child type="titlebar">
       <object class="GtkHeaderBar">
         <property name="visible">1</property>
-        <property name="show_close_button">1</property>
+        <property name="show-title-buttons">1</property>
         <property name="title">Font Features</property>
         <child>
           <object class="GtkButton" id="reset">