diff --git a/support/mkdocstrings_handlers/cxx/__init__.py b/support/mkdocstrings_handlers/cxx/__init__.py
index be666ed2..d05f3f4e 100644
--- a/support/mkdocstrings_handlers/cxx/__init__.py
+++ b/support/mkdocstrings_handlers/cxx/__init__.py
@@ -168,7 +168,8 @@ class CxxHandler(BaseHandler):
       text += '>\n'
     text += d.type + ' ' + d.name
     if d.params is not None:
-      params = ', '.join([p.type + ' ' + p.name for p in d.params])
+      params = ', '.join(
+        [f'{p.type.replace("<", "&lt;")} {p.name}' for p in d.params])
       text += '(' + params + ')'
     text += ';'
     text += '</code></pre>\n'