diff --git a/plymouth.spec b/plymouth.spec
index 199c28a..62c4b5c 100644
--- a/plymouth.spec
+++ b/plymouth.spec
@@ -28,6 +28,10 @@ BuildRequires: pango-devel >= 1.21.0
 BuildRequires: cairo-devel
 BuildRequires: gettext-devel
 BuildRequires: intltool
+# for /usr/bin/systemd-tty-ask-password-agent
+BuildRequires: systemd
+# for _unitdir macro
+BuildRequires: systemd-rpm-macros
 
 Requires: %{name}-core-libs = %{version}-%{release}
 Requires: %{name}-scripts = %{version}-%{release}
@@ -329,7 +333,7 @@ fi
 %{_localstatedir}/spool/plymouth
 %{_mandir}/man?/*
 %ghost %verify(not mode) %{_localstatedir}/lib/plymouth/boot-duration
-%{_prefix}/lib/systemd/system/
+%{_unitdir}/
 
 %files devel
 %{_libdir}/libply.so