diff --git a/sdk_container/src/third_party/portage-stable/dev-python/lxml/lxml-4.9.2.ebuild b/sdk_container/src/third_party/portage-stable/dev-python/lxml/lxml-4.9.2.ebuild
index ffa5dfcbf7..6d7db74809 100644
--- a/sdk_container/src/third_party/portage-stable/dev-python/lxml/lxml-4.9.2.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-python/lxml/lxml-4.9.2.ebuild
@@ -3,6 +3,7 @@
 
 EAPI=8
 
+DISTUTILS_EXT=1
 DISTUTILS_USE_PEP517=setuptools
 PYTHON_COMPAT=( python3_{9..11} pypy3 )