diff --git a/panel-plugins/power-manager-plugin/scalemenuitem.h b/panel-plugins/power-manager-plugin/scalemenuitem.h
index 0a4fa552e646967248acd5bd1411ddae84c873dc..772419a036dca0a1e71bf191a2f78bc33988ba0c 100644
--- a/panel-plugins/power-manager-plugin/scalemenuitem.h
+++ b/panel-plugins/power-manager-plugin/scalemenuitem.h
@@ -46,14 +46,14 @@ typedef struct _ScaleMenuItemPrivate ScaleMenuItemPrivate;
 
 struct _ScaleMenuItem
 {
-  GtkMenuItem parent_instance;
+  GtkImageMenuItem parent_instance;
 
   ScaleMenuItemPrivate *priv;
 };
 
 struct _ScaleMenuItemClass
 {
-  GtkMenuItemClass parent_class;
+  GtkImageMenuItemClass parent_class;
 };