diff --git a/dev-python/pendulum/pendulum-2.1.2-r2.ebuild b/dev-python/pendulum/pendulum-2.1.2-r2.ebuild
index a6ec7ab0e7786..ff1ae532839f4 100644
--- a/dev-python/pendulum/pendulum-2.1.2-r2.ebuild
+++ b/dev-python/pendulum/pendulum-2.1.2-r2.ebuild
@@ -3,6 +3,7 @@
 
 EAPI=7
 
+DISTUTILS_EXT=1
 DISTUTILS_USE_PEP517=poetry
 PYTHON_COMPAT=( python3_{9..11} )