diff --git a/python-sphinx_rtd_theme.spec b/python-sphinx_rtd_theme.spec
index 0484b95..4895b46 100644
--- a/python-sphinx_rtd_theme.spec
+++ b/python-sphinx_rtd_theme.spec
@@ -83,7 +83,6 @@ sed -e "s|\('https://docs\.readthedocs\.io/en/stable/', \)None|\1'%{SOURCE1}'|"
 mkdir -p build/lib/%{srcname}/static/js
 cp -p sphinx_rtd_theme/static/js/badge_only.js build/lib/%{srcname}/static/js
 cp -p sphinx_rtd_theme/static/js/theme.js build/lib/%{srcname}/static/js
-sed -i "/'build_py'/d" setup.py
 
 %build
 %pyproject_wheel