diff --git a/strongswan.spec b/strongswan.spec
index 01e9c35..35432ad 100644
--- a/strongswan.spec
+++ b/strongswan.spec
@@ -53,6 +53,7 @@ BuildRequires:  libxml2-devel
 BuildRequires:  pam-devel
 BuildRequires:  json-c-devel
 BuildRequires:  libgcrypt-devel
+BuildRequires:  systemd-devel
 %if 0%{?fedora} >= 19 || 0%{?rhel} >= 7
 BuildRequires:  NetworkManager-devel
 BuildRequires:  NetworkManager-glib-devel