diff --git a/radvd.spec b/radvd.spec
index f8e4a1b..c84ad87 100644
--- a/radvd.spec
+++ b/radvd.spec
@@ -19,6 +19,10 @@ Requires(post):     chkconfig
 Requires(pre):      /usr/sbin/useradd
 BuildRequires:      flex, flex-static, byacc
 BuildRoot:          %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+BuildRequires: systemd-units
+Requires:   systemd-units
+Conflicts: systemd < 38
+Conflicts: filesystem < 3
 
 %description
 radvd is the router advertisement daemon for IPv6.  It listens to router
@@ -52,7 +56,7 @@ make DESTDIR=$RPM_BUILD_ROOT install
 mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}/sysconfig
 mkdir -p $RPM_BUILD_ROOT%{initdir}
 mkdir -p $RPM_BUILD_ROOT%{_localstatedir}/run/radvd
-mkdir -p $RPM_BUILD_ROOT/lib/systemd/system
+mkdir -p $RPM_BUILD_ROOT%{_unitdir}
 
 install -m 644 redhat/radvd.conf.empty $RPM_BUILD_ROOT%{_sysconfdir}/radvd.conf
 install -m 755 %{SOURCE1} $RPM_BUILD_ROOT%{initdir}/radvd
@@ -60,7 +64,7 @@ install -m 644 redhat/radvd.sysconfig $RPM_BUILD_ROOT%{_sysconfdir}/sysconfig/ra
 
 install -d -m 755 $RPM_BUILD_ROOT%{_sysconfdir}/tmpfiles.d
 install -p -m 644 %{SOURCE2} $RPM_BUILD_ROOT%{_sysconfdir}/tmpfiles.d/radvd.conf
-install -m 644 %{SOURCE3} ${RPM_BUILD_ROOT}/lib/systemd/system
+install -m 644 %{SOURCE3} ${RPM_BUILD_ROOT}%{_unitdir}
 
 %clean
 [ $RPM_BUILD_ROOT != "/" ] && rm -rf $RPM_BUILD_ROOT
@@ -97,7 +101,7 @@ exit 0
 %files
 %defattr(-,root,root,-)
 %doc COPYRIGHT README CHANGES INTRO.html TODO
-/lib/systemd/system/radvd.service
+%{_unitdir}/radvd.service
 %config(noreplace) %{_sysconfdir}/radvd.conf
 %config(noreplace) %{_sysconfdir}/sysconfig/radvd
 %config(noreplace) %{_sysconfdir}/tmpfiles.d/radvd.conf