diff --git a/src/resources/filters/quarto-pre/code-annotation.lua b/src/resources/filters/quarto-pre/code-annotation.lua
index 077a10077e6..e09e9f036fb 100644
--- a/src/resources/filters/quarto-pre/code-annotation.lua
+++ b/src/resources/filters/quarto-pre/code-annotation.lua
@@ -529,10 +529,10 @@ function code_annotations()
             local dl
             if _quarto.format.isAsciiDocOutput() then
               local formatted = pandoc.List()
-              for _i,v in ipairs(items) do
+              for _,v in ipairs(items) do
                 local annotationMarker = v[1] .. ' '
                 local definition = v[2]
-                tprepend(definition.content, {annotationMarker})
+                tprepend(definition.content, {pandoc.RawInline('asciidoc', annotationMarker)})
                 formatted:insert(definition)
               end
               dl = pandoc.Div(formatted)
diff --git a/tests/docs/smoke-all/2023/01/26/asciidoc-annotated-code.qmd b/tests/docs/smoke-all/2023/01/26/asciidoc-annotated-code.qmd
index 748ef43694e..75253224596 100644
--- a/tests/docs/smoke-all/2023/01/26/asciidoc-annotated-code.qmd
+++ b/tests/docs/smoke-all/2023/01/26/asciidoc-annotated-code.qmd
@@ -4,9 +4,14 @@ format:
   asciidoc: default
 _quarto:
   tests:
-    asciidoc: default
+    asciidoc: 
+      ensureFileRegexMatches:
+        - ['\<1\> First set', 'plt\.show\(\) \<3\>']
+        - ['\+\+\<\+\+1\+\+\>\+\+']
 ---
 
+This also covers https://github.com/quarto-dev/quarto-cli/issues/12441
+
 ## Annotated Code
 
 ```python