diff --git a/Makefile.am b/Makefile.am

index a272008..82902cf 100644

--- a/Makefile.am

+++ b/Makefile.am

@@ -181,7 +181,7 @@ src_drmgr_lsslot_LDADD = -lrtas

 if WITH_SYSTEMD

 install-data-hook: systemd/smt_off.service

-	$(MKDIR_P) @prefix@${systemd_unit_dir}

-	$(INSTALL_SCRIPT) $< @prefix@${systemd_unit_dir}/

-	sed -i -e 's,$${exec_prefix},@sbindir@,g' @prefix@${systemd_unit_dir}/smt_off.service

+	$(MKDIR_P) ${DESTDIR}${systemd_unit_dir}

+	$(INSTALL_SCRIPT) $< ${DESTDIR}${systemd_unit_dir}/

+	sed -i -e 's,$${exec_prefix},@sbindir@,g' ${DESTDIR}${systemd_unit_dir}/smt_off.service

 endif