diff --git a/python-debian.spec b/python-debian.spec
index 921d35f..a3f097d 100644
--- a/python-debian.spec
+++ b/python-debian.spec
@@ -85,7 +85,7 @@ cp -a . %{py3dir}
 
 %build
 sed -e 's/__CHANGELOG_VERSION__/$(VERSION)/' < setup.py.in > setup.py
-%{__python} setup.py build
+%py2_build
 
 %if 0%{with_python3}
 pushd %{py3dir}