diff --git a/spamassassin.spec b/spamassassin.spec
index 5e31b24..028f3f9 100644
--- a/spamassassin.spec
+++ b/spamassassin.spec
@@ -63,7 +63,7 @@ Summary: Spam filter for email which can be invoked from mail delivery agents
 Name: spamassassin
 Version: 3.4.1
 #Release: 0.8.%{prerev}%{?dist}
-Release: 20%{?dist}
+Release: 21%{?dist}
 License: ASL 2.0
 Group: Applications/Internet
 URL: http://spamassassin.apache.org/
@@ -110,7 +110,9 @@ Patch104: spamassassin-3.4.1-salearn.patch
 
 # end of patches
 Requires: perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
+%if %{use_systemd} == 0
 Requires: /sbin/chkconfig /sbin/service
+%endif
 Requires(post): diffutils
 
 BuildRequires: perl-interpreter >= 2:5.8.0
@@ -372,6 +374,9 @@ exit 0
 %endif
 
 %changelog
+* Wed Jun 20 2018 Kevin Fenzi <kevin@scrye.com> - 3.4.1-21
+- Conditionalize Requires for /sbin/service and /sbin/chkconfig. Fixes bug #1592390
+
 * Thu Jun 07 2018 Tomas Korbar <tomas.korb@seznam.cz> - 3.4.1-20
 - Add razor log path and home directory option