1 files changed, 11 insertions, 3 deletions

diff --git a/scripts/metadata_filter.lua b/scripts/metadata_filter.lua
index 4abb716..fb7b3c9 100644
--- a/scripts/metadata_filter.lua
+++ b/scripts/metadata_filter.lua
@@ -137,15 +137,23 @@ function resolve_category(categories, category)
 end
 
 function create_main_menu_state(section, main_menu)
+    local active_item = nil
+
     for i = 1, #main_menu do
         local item = main_menu[i]
         local active = pandoc.utils.stringify(item.id) == section.id
         item.active = pandoc.MetaBool(active)
+        if active then
+            active_item = item
+        end
     end
 
-    return main_menu:filter(function(item)
-        return not item.hidden or item.active
-    end)
+    return pandoc.MetaMap({
+        items = main_menu:filter(function(item)
+            return not item.hidden or item.active
+        end),
+        active = active_item
+    })
 end
 
 function organize_subpages(pages)