diff --git a/_quarto.yml b/_quarto.yml
index c39a8ec698..bc123df1b2 100644
--- a/_quarto.yml
+++ b/_quarto.yml
@@ -518,6 +518,8 @@ website:
                       href: docs/reference/formats/markdown/gfm.qmd
                     - text: "CommonMark"
                       href: docs/reference/formats/markdown/commonmark.qmd
+                    - text: "Hugo"
+                      href: docs/reference/formats/markdown/hugo.qmd
                     - text: "Markua"
                       href: docs/reference/formats/markdown/markua.qmd
                 - section: "Wikis"
diff --git a/docs/reference/reference.lua b/docs/reference/reference.lua
index 8307bb4005..cd01e0b670 100644
--- a/docs/reference/reference.lua
+++ b/docs/reference/reference.lua
@@ -39,6 +39,9 @@ function Pandoc(doc)
   local refJsonPath = stem .. ".json"
   
   local refJsonFile = io.open(refJsonPath, "r")
+  if refJsonFile == nil then
+    quarto.log.warning("Reference JSON not found: " .. refJsonPath)
+  end
   if refJsonFile ~= nil then
     io.input(refJsonFile)
     local refJson = io.read("*all")