diff --git a/Makefile b/Makefile
index a8bc83d..10210fc 100644
--- a/Makefile
+++ b/Makefile
@@ -28,6 +28,7 @@ BINDIR      = $(PREFIX)/bin
 DOCDIR      = $(PREFIX)/share/doc/$(PN)
 SCRIPTDIR   = $(PREFIX)/share/$(PN)/scripts
 SYSTEMDDIR  = $(PREFIX)/lib/systemd/system
+TIMERCONF   = $(CONFDIR)/systemd/system/btrbk.timer.d
 BASHCOMPDIR = $(PREFIX)/share/bash-completion/completions
 MAN1DIR     = $(PREFIX)/share/man/man1
 MAN5DIR     = $(PREFIX)/share/man/man5
@@ -79,12 +80,16 @@ install-completion:
 install-systemd:
 	@echo 'installing systemd service units...'
 	install -d -m 755 "$(DESTDIR)$(SYSTEMDDIR)"
+        install -d -m 755 "$(TIMERCONF)"
 	$(replace_vars) contrib/systemd/btrbk.service.in > contrib/systemd/btrbk.service.tmp
 	$(replace_vars) contrib/systemd/btrbk.timer.in > contrib/systemd/btrbk.timer.tmp
+        $(replace_vars) contrib/systemd/delay.timer.in > contrib/systemd/delay.timer.tmp
 	install -p -m 644 contrib/systemd/btrbk.service.tmp "$(DESTDIR)$(SYSTEMDDIR)/btrbk.service"
 	install -p -m 644 contrib/systemd/btrbk.timer.tmp "$(DESTDIR)$(SYSTEMDDIR)/btrbk.timer"
+        install -p -m 644 contrib/systemd/delay.timer.tmp "$(TIMERCONF)"/delay.timer"
 	rm contrib/systemd/btrbk.service.tmp
 	rm contrib/systemd/btrbk.timer.tmp
+        rm contrib/systemd/delay.timer.tmp
 
 install-share:
 	@echo 'installing auxiliary scripts...'