diff --git a/profiles/arch/alpha/package.use.mask b/profiles/arch/alpha/package.use.mask
index 4424f1abce124..2c177b812909b 100644
--- a/profiles/arch/alpha/package.use.mask
+++ b/profiles/arch/alpha/package.use.mask
@@ -1,6 +1,11 @@
 # Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
+# Michał Górny <mgorny@gentoo.org> (2021-12-30)
+# Don't apply stable masks to python-exec since we're forcing every
+# impl there anyway. Please keep this in sync with use.mask.
+dev-lang/python-exec -python_targets_python3_10
+
 # Vadim Misbakh-Soloviov <mva@gentoo.org> (2021-12-09)
 # ts-cli requires rust to be built, and rust is unavailable here ATM.
 dev-libs/tree-sitter ts-cli