diff --git a/postfix.changes b/postfix.changes
index 39631e9..794a769 100644
--- a/postfix.changes
+++ b/postfix.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Feb 23 09:33:08 UTC 2013 - rmilasan@suse.com
+
+- Install postfix.service accordingly (/usr/lib/systemd for 12.3
+  and up or /lib/systemd for older versions).
+
 -------------------------------------------------------------------
 Wed Feb  6 19:56:57 UTC 2013 - varkoly@suse.com
 
diff --git a/postfix.spec b/postfix.spec
index 1d4ff1e..ae7ed80 100644
--- a/postfix.spec
+++ b/postfix.spec
@@ -96,6 +96,12 @@ Provides:       smtp_daemon
 #
 # ---------------------------------------------------------------------------
 
+%if %suse_version > 1220
+%define         _unitdir /usr/lib/systemd
+%else
+%define         _unitdir /lib/systemd
+%endif
+
 %description
 Postfix aims to be an alternative to the widely-used sendmail program.
 
@@ -296,9 +302,9 @@ cp -a examples/* $RPM_BUILD_ROOT%{pf_sample_directory}
 cp -a html/*     $RPM_BUILD_ROOT%{pf_html_directory}
 cp -a auxiliary/ $RPM_BUILD_ROOT%{pf_docdir}/
 %if 0%{?suse_version} >= 1140
-mkdir -p %{buildroot}/lib/systemd/system
+mkdir -p %{buildroot}%{_unitdir}/system
 mkdir -p %{buildroot}/etc/postfix/system
-install -m 0644 %{name}-SuSE/postfix.service         %{buildroot}/lib/systemd/system/
+install -m 0644 %{name}-SuSE/postfix.service         %{buildroot}%{_unitdir}/system/postfix.service
 install -m 0755 %{name}-SuSE/config_postfix.systemd  %{buildroot}/etc/postfix/system/config_postfix
 install -m 0755 %{name}-SuSE/update_chroot.systemd   %{buildroot}/etc/postfix/system/update_chroot
 install -m 0755 %{name}-SuSE/update_postmaps.systemd %{buildroot}/etc/postfix/system/update_postmaps
@@ -477,7 +483,7 @@ rm -rf $RPM_BUILD_ROOT
 %if 0%{?suse_version} >= 1140
 %dir /etc/postfix/system
 %config %attr(0755,root,root) /etc/postfix/system/*
-%config /lib/systemd/system/postfix.service
+%config %{_unitdir}/system/postfix.service
 %endif
 /usr/bin/mailq
 /usr/bin/newaliases