diff --git a/profiles/base/package.use.mask b/profiles/base/package.use.mask
index f8c791230dcb4..808e123ea198d 100644
--- a/profiles/base/package.use.mask
+++ b/profiles/base/package.use.mask
@@ -3,6 +3,10 @@
 
 # New entries go on top.
 
+# Michał Górny <mgorny@gentoo.org> (2025-02-20)
+# Requires dev-python/recommonmark with Python 3.10
+<llvm-core/clang-18 doc
+
 # Andreas Sturmlechner <asturm@gentoo.org> (2025-02-13)
 # Prepare cleanup of dev-qt/qtgamepad:5
 dev-qt/qt3d gamepad