diff --git a/tests/t00080/.clang-uml b/tests/t00080/.clang-uml
index e3951d40..cbc4a031 100644
--- a/tests/t00080/.clang-uml
+++ b/tests/t00080/.clang-uml
@@ -1,7 +1,11 @@
+add_compile_flags:
+  - -fparse-all-comments
+  - -fretain-comments-from-system-headers
 diagrams:
   t00080_class:
     type: class
     filter_mode: advanced
+    comment_parser: clang
     include_system_headers: true
     glob:
       - t00080.cc
@@ -11,4 +15,10 @@ diagrams:
           - clanguml::t00080
         elements:
           - std::thread
-    using_namespace: clanguml::t00080
\ No newline at end of file
+    using_namespace: clanguml::t00080
+    plantuml:
+      after:
+        - '{% set e=element("std::thread") %} note top of {{ e.alias }} : {{ trim(e.comment.paragraph.0) }}'
+    mermaid:
+      after:
+        - '{% set e=element("std::thread") %} note for {{ e.alias }} "{{ trim(e.comment.paragraph.0) }}"'
\ No newline at end of file