diff --git a/support/python/mkdocstrings_handlers/cxx/__init__.py b/support/python/mkdocstrings_handlers/cxx/__init__.py
index d0432100..1aac39ec 100644
--- a/support/python/mkdocstrings_handlers/cxx/__init__.py
+++ b/support/python/mkdocstrings_handlers/cxx/__init__.py
@@ -3,10 +3,11 @@
 
 import os
 from pathlib import Path
-import xml.etree.ElementTree as et
-from mkdocstrings.handlers.base import BaseHandler
 from typing import Any, List, Mapping, Optional
 from subprocess import CalledProcessError, PIPE, Popen, STDOUT
+import xml.etree.ElementTree as et
+
+from mkdocstrings.handlers.base import BaseHandler
 
 class Definition:
   '''A definition extracted by Doxygen.'''
@@ -288,6 +289,8 @@ class CxxHandler(BaseHandler):
     return self.collect_compound(identifier, cls)
 
   def render(self, d: Definition, config: dict) -> str:
+    if d.id is not None:
+      self.do_heading('', 0, id=d.id)
     text = '<div class="docblock">\n'
     text += render_decl(d)
     text += '<div class="docblock-desc">\n'