diff --git a/sysstat.spec b/sysstat.spec
index 7c48e8d..8a97c90 100644
--- a/sysstat.spec
+++ b/sysstat.spec
@@ -14,7 +14,7 @@ BuildRequires: gcc, gettext, lm_sensors-devel, systemd, git
 
 Requires: findutils, xz
 
-%systemd_requires
+%{?systemd_requires}
 
 %description
 The sysstat package contains the sar, sadf, mpstat, iostat, tapestat,