diff --git a/rhel7-sausage-api.spec b/rhel7-sausage-api.spec
index faa4ae4..4ec9dbc 100644
--- a/rhel7-sausage-api.spec
+++ b/rhel7-sausage-api.spec
@@ -1,63 +1,67 @@
 %define name sausage-api
 %define version 0.1.0
 %define unmangled_version 0.1.0
 %define unmangled_version 0.1.0
 %define release 1
 
 
 Summary: SLURM account usage API
 Name: %{name}
 Version: %{version}
 Release: %{release}
 Source0: %{name}-%{unmangled_version}.tar.gz
 License: GPLv3
 Group: Application/System
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-buildroot
 Prefix: %{_prefix}
 BuildArch: noarch
 Vendor: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
 Url: https://c4science.ch/source/sausage-api/
-BuildRequires: systemd-rpm-macros, python3-setuptools, python36-falcon, python36-gunicorn, python36-elasticsearch6
+BuildRequires: python3-setuptools, python36-falcon, python36-gunicorn, python36-elasticsearch6
 
 
 %description
 This project implements a Falcon API service to display CPU / GPU consumption 
 per account in a Slurm cluster.
 
 The service queries the elastic instance created  by the jobcomp/elasticsearch 
 plugin provided by SchedMD.  
 
 
 %package sausage-api
 Summary: SLURM account usage API
 Requires: python36-falcon, python36-gunicorn, python36-elasticsearch6
 %description sausage-api
  SLURM account usage Falcon API service
 
 
 %prep
 %setup -n %{name}-%{unmangled_version} -n %{name}-%{unmangled_version}
 
 %build
 python3 setup.py build
 
 %install sausage-api-core
 python3 setup.py install --single-version-externally-managed -O1 --root=$RPM_BUILD_ROOT --record=INSTALLED_FILES
 install -m 755 sausage_api.service %{buildroot}/etc/systemd/system/
 
 
 %clean
 rm -rf $RPM_BUILD_ROOT
 
 %files -f INSTALLED_FILES
 %defattr(-,root,root)
 
 %pre
 getent group sausage >/dev/null || groupadd -r sausage
 getent passwd sausage >/dev/null || useradd -r -g sausage -d /var/spool/sausage -s /sbin/nologin sausage
 
 %post
-%systemd_post sausage_api.service
-
-%preun
-%systemd_preun sausage_api.service
+%if 0%{?rhel} < 8
+/bin/systemctl --system daemon-reload &> /dev/null 
+/bin/systemctl --system enable sausage_api &> /dev/null 
+%endif
+%postun
+%if 0%{?rhel} < 8
+/bin/systemctl --system daemon-reload &> /dev/nul
+%endif