diff --git a/watchdog.spec b/watchdog.spec
index 155242a..1380223 100644
--- a/watchdog.spec
+++ b/watchdog.spec
@@ -1,7 +1,7 @@
 Name:          watchdog
 Summary:       A powerful software and/or Hardware watchdog daemon and/or device
 Version:       5.15
-Release:       4
+Release:       5
 License:       GPLv2+
 URL:           http://sourceforge.net/projects/watchdog/
 Source0:       http://downloads.sourceforge.net/watchdog/watchdog-%{version}.tar.gz
@@ -47,11 +47,11 @@ install -Dd -m0755 %{buildroot}%{_libexecdir}/watchdog/scripts
 
 %preun
 %systemd_preun watchdog.service
-%systemd_preun watchdog.ping.service
+%systemd_preun watchdog-ping.service
 
 %postun
 %systemd_postun_with_restart watchdog.service
-%systemd_postun_with_restart watchdog.ping.service
+%systemd_postun_with_restart watchdog-ping.service
 
 %triggerun -- watchdog < 5.9-4
 
@@ -72,5 +72,8 @@ install -Dd -m0755 %{buildroot}%{_libexecdir}/watchdog/scripts
 %{_libexecdir}/watchdog/scripts
 
 %changelog
+* Sat Sep 19 2020 Guoshuai Sun <sunguoshuai@huawei.com> - 5.15-5
+- scripts when uninstall in %preun and %postun should watchdog-ping.service but not watchdog.ping.service
+
 * Mon Apr 27 2020 chengzihan <chengzihan2@huawei.com> - 5.15-4
 - Package init