diff --git a/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-0.29.34.ebuild b/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-0.29.34.ebuild
index 1c030e3fca..72900e9aaf 100644
--- a/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-0.29.34.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-0.29.34.ebuild
@@ -3,6 +3,7 @@
 
 EAPI=8
 
+DISTUTILS_EXT=1
 DISTUTILS_USE_PEP517=setuptools
 PYTHON_COMPAT=( python3_{9..11} pypy3 )
 PYTHON_REQ_USE="threads(+)"
diff --git a/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-3.0.0_beta2.ebuild b/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-3.0.0_beta2.ebuild
index 7837d43a0e..a662c30596 100644
--- a/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-3.0.0_beta2.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-python/cython/cython-3.0.0_beta2.ebuild
@@ -3,6 +3,7 @@
 
 EAPI=8
 
+DISTUTILS_EXT=1
 DISTUTILS_USE_PEP517=setuptools
 PYTHON_COMPAT=( python3_{9..11} pypy3 )
 PYTHON_REQ_USE="threads(+)"