diff --git a/setools.spec b/setools.spec
index 35001d2..abbfc54 100644
--- a/setools.spec
+++ b/setools.spec
@@ -125,8 +125,7 @@ cp -a ../setools-%{version}%{?setools_pre_ver:-%{setools_pre_ver}} ../setools-%{
 
 
 %build
-# Remove CFLAGS=... for noarch packages (unneeded)
-CFLAGS="%{optflags}" %{__python3} setup.py build
+%py3_build
 
 pushd ../setools-%{version}%{?setools_pre_ver:-%{setools_pre_ver}}-python2
 # Remove CFLAGS=... for noarch packages (unneeded)
@@ -141,7 +140,7 @@ pushd ../setools-%{version}%{?setools_pre_ver:-%{setools_pre_ver}}-python2
 popd
 
 rm -rf %{buildroot}%{_bindir}
-%{__python3} setup.py install --root %{buildroot}
+%py3_install
 
 %check
 %if %{?_with_check:1}%{!?_with_check:0}