diff --git a/src/sysprof/sysprof-window.ui b/src/sysprof/sysprof-window.ui
index 0f0590d4..34888c48 100644
--- a/src/sysprof/sysprof-window.ui
+++ b/src/sysprof/sysprof-window.ui
@@ -19,6 +19,7 @@
               <object class="GtkMenuButton" id="menu_button">
                 <property name="tooltip-text" translatable="yes">Main Menu</property>
                 <property name="visible">true</property>
+                <property name="primary">true</property>
                 <child>
                   <object class="GtkImage">
                     <property name="icon-name">open-menu-symbolic</property>