diff --git a/ct/calibre-web.sh b/ct/calibre-web.sh
index 86e902bd..a4ff0449 100644
--- a/ct/calibre-web.sh
+++ b/ct/calibre-web.sh
@@ -54,7 +54,7 @@ function default_settings() {
 }
 
 function update_script() {
-  if [[ ! -f /etc/systemd/system/vaultwarden.service ]]; then
+  if [[ ! -f /etc/systemd/system/cps.service ]]; then
     msg_error "No ${APP} Installation Found!"
     exit
   fi