diff --git a/src/mac/carbon/menu.cpp b/src/mac/carbon/menu.cpp
index 3aaa031702..b3291353e3 100644
--- a/src/mac/carbon/menu.cpp
+++ b/src/mac/carbon/menu.cpp
@@ -796,7 +796,9 @@ void wxMenuBar::MacInstallMenuBar()
                 subMenu = item->GetSubMenu() ;
                 if (subMenu)
                 {
-                    // we don't support hierarchical menus in the help menu yet
+                    UMAAppendMenuItem(mh, wxStripMenuCodes(item->GetText()) , wxFont::GetDefaultEncoding() );
+                    MenuItemIndex position = CountMenuItems(mh);
+                    ::SetMenuItemHierarchicalMenu(mh, position, MAC_WXHMENU(subMenu->GetHMenu()));
                 }
                 else
                 {