diff --git a/ser2net.spec b/ser2net.spec
index 6fa8ab9..5333617 100644
--- a/ser2net.spec
+++ b/ser2net.spec
@@ -1,14 +1,14 @@
-%global _unitdir /lib/systemd/system/
-
 Name:		ser2net
 Summary: 	Proxy that allows tcp connections to serial ports
 Version:	2.7
-Release:	3%{?dist}
+Release:	4%{?dist}
 License:	GPLv2+
 Group:		Applications/System
 Source0:	http://download.sourceforge.net/ser2net/%{name}-%{version}.tar.gz
 Source1:	%{name}.service
 URL:		http://ser2net.sourceforge.net/
+BuildRequires:	systemd-units
+Requires(post): systemd-sysv
 Requires(post): systemd-units
 Requires(preun): systemd-units
 Requires(postun): systemd-units
@@ -34,30 +34,35 @@ mkdir -p %{buildroot}%{_unitdir}
 install %{SOURCE1} %{buildroot}%{_unitdir}
 
 %post
-if [ $1 -eq 2 ]; then
-        # Package upgrade
-        if [ -f %{_initddir}/ser2net ] ; then
-	   if /sbin/chkconfig ser2net; then
-              /bin/systemctl enable ser2net.service >/dev/null 2>&1 || :
-           fi
-        fi
+if [ $1 -eq 1 ] ; then 
+    # Initial installation 
+    /bin/systemctl daemon-reload >/dev/null 2>&1 || :
 fi
-/bin/systemctl daemon-reload >/dev/null 2>&1 || :
 
 %preun
-if [ $1 -eq 0 ]; then
-	# Package removal, not upgrade
-	/bin/systemctl disable ser2net.service > /dev/null 2>&1 || :
-	/bin/systemctl stop ser2net.service > /dev/null 2>&1 || :
+if [ $1 -eq 0 ] ; then
+    # Package removal, not upgrade
+    /bin/systemctl --no-reload disable ser2net.service > /dev/null 2>&1 || :
+    /bin/systemctl stop ser2net.service > /dev/null 2>&1 || :
 fi
 
 %postun
 /bin/systemctl daemon-reload >/dev/null 2>&1 || :
-if [ $1 -ge 1 ]; then
-	# Package upgrade, not uninstall
-	/bin/systemctl try-restart ser2net.service >/dev/null 2>&1 || :
+if [ $1 -ge 1 ] ; then
+    # Package upgrade, not uninstall
+    /bin/systemctl try-restart ser2net.service >/dev/null 2>&1 || :
 fi
 
+%triggerun -- ser2net < 2.7-3
+# Save the current service runlevel info
+# User must manually run systemd-sysv-convert --apply ser2net
+# to migrate them to systemd targets
+/usr/bin/systemd-sysv-convert --save ser2net >/dev/null 2>&1 ||:
+
+# Run these because the SysV package being removed won't do them
+/sbin/chkconfig --del ser2net >/dev/null 2>&1 || :
+/bin/systemctl try-restart ser2net.service >/dev/null 2>&1 || :
+
 %files
 %defattr(-,root,root)
 %doc COPYING ChangeLog AUTHORS README
@@ -67,6 +72,9 @@ fi
 %{_mandir}/man8/%{name}*
 
 %changelog
+* Fri May 06 2011 Tom Callaway <spot@fedoraproject.org> - 2.7-4
+- fixed scriptlets
+
 * Wed Feb 09 2011 Tom Callaway <tcallawa@redhat.com> - 2.7-3
 - systemd enablement
 - rawhide spec cleanup