diff --git a/demos/gtk-demo/theming.ui b/demos/gtk-demo/theming.ui
index ee0414b036..7455e6df40 100644
--- a/demos/gtk-demo/theming.ui
+++ b/demos/gtk-demo/theming.ui
@@ -182,6 +182,7 @@
         <property name="visible">1</property>
         <property name="hexpand">1</property>
         <property name="icon_size">1</property>
+        <property name="toolbar-style">icons</property>
         <style>
           <class name="inline-toolbar"/>
         </style>