diff --git a/tools/lib/python/kdoc/xforms_lists.py b/tools/lib/python/kdoc/xforms_lists.py
index f6ea9efb11ae..496c52188273 100644
--- a/tools/lib/python/kdoc/xforms_lists.py
+++ b/tools/lib/python/kdoc/xforms_lists.py
@@ -93,6 +93,7 @@ class CTransforms:
         (CMatch("__weak"), ""),
         (CMatch("__sched"), ""),
         (CMatch("__always_unused"), ""),
+        (CMatch("__maybe_unused"), ""),
         (CMatch("__printf"), ""),
         (CMatch("__(?:re)?alloc_size"), ""),
         (CMatch("__diagnose_as"), ""),