diff --git a/ovirt-cockpit-sso.spec b/ovirt-cockpit-sso.spec
index 3430b6b..86bae56 100644
--- a/ovirt-cockpit-sso.spec
+++ b/ovirt-cockpit-sso.spec
@@ -1,6 +1,6 @@
 Name:           ovirt-cockpit-sso
 Version:        0.1.4
-Release:        1
+Release:        2
 Summary:        Provides SSO from oVirt Administration Portal to Cockpit
 License:        ASL 2.0
 URL:            https://github.com/oVirt/%{name}
@@ -74,8 +74,12 @@ esac
 case "$1" in
   0)
     ## package is being removed
-    rm %{app_root_dir}/config/cockpit/ws-certs.d || true
-    rm %{app_root_dir}/ca.pem || true
+    if [[ -e %{app_root_dir}/config/cockpit/ws-certs.d ]]; then
+      rm %{app_root_dir}/config/cockpit/ws-certs.d || true
+    fi
+    if [[ -e %{app_root_dir}/ca.pem ]]; then
+      rm %{app_root_dir}/ca.pem || true
+    fi
 
     ## TODO: this is not working but would be better approach:
     ## /bin/firewall-cmd --permanent --zone=public --delete-service=ovirt-cockpit-sso
@@ -105,5 +109,8 @@ systemctl daemon-reload
 %config %verify(not md5 size mtime) %{app_root_dir}/config/cockpit/cockpit.conf
 
 %changelog
+* Wed Mar 16 2022 wangdi <wangdi@kylinos.cn> - 0.1.4-2
+- fix warning of failing to delete files when uninstall
+
 * Tue Jul 06 2021 weishaokun <weishaokun@kylinos.cn> - 0.1.4
 - update package