diff --git a/doc/installation/source/macos.rst b/doc/installation/source/macos.rst
index 186762349..76d5be528 100644
--- a/doc/installation/source/macos.rst
+++ b/doc/installation/source/macos.rst
@@ -76,6 +76,11 @@ Recommended
   placed at ``/opt/homebrew/opt/llvm/bin/clang-tidy`` so you may need to add this path to your
   ``$PATH`` variable.
 
+.. note::
+  Likewise, when using MacPorts, the ``clang-tidy`` and ``clang-format`` binaries will be
+  placed in ``/opt/local/libexec/llvm-XX/bin`` (where ``XX` is the installed version number
+  such as ``16``), so you will need to add this to your ``$PATH`` variable.
+
 .. note::
   For debugging, ``lldb`` is the default debugger for llvm.  Memory checkers such as
   Memory Graph exist for macOS, but the ns-3 team doesn't have experience with it as a