diff --git a/dev-python/reedsolomon/reedsolomon-2.1.0_beta1.ebuild b/dev-python/reedsolomon/reedsolomon-2.1.0_beta1.ebuild
index 266c7d19915b7..51c786a9ff0df 100644
--- a/dev-python/reedsolomon/reedsolomon-2.1.0_beta1.ebuild
+++ b/dev-python/reedsolomon/reedsolomon-2.1.0_beta1.ebuild
@@ -3,6 +3,7 @@
 
 EAPI=8
 
+DISTUTILS_EXT=1
 DISTUTILS_USE_PEP517=setuptools
 PYPI_PN=reedsolo
 PYTHON_COMPAT=( python3_{9..11} )