diff --git a/Docs/source/debugging.rst b/Docs/source/debugging.rst
index 1d15406482..3341984d51 100644
--- a/Docs/source/debugging.rst
+++ b/Docs/source/debugging.rst
@@ -88,8 +88,9 @@ and you can treat warnings as errors by adding ``CLANG_TIDY_WARN_ERROR=TRUE``.
 .. note::
 
    Building a Castro problem with ``clang-tidy`` will suppress the
-   checks in AMReX and Microphysics sources.  This is set by the parameter
-   ``CLANG_TIDY_IGNORE_SOURCES`` in ``Make.Castro``.
+   checks in AMReX and Microphysics sources and headers.  This is set by
+   the parameter ``CLANG_TIDY_IGNORE_SOURCES`` in ``Make.Castro``, and
+   the ``HeaderFilterRegex`` whitelist in ``.clang-tidy``.
 
 
 Thread sanitizer