diff --git a/backup.ps1 b/backup.ps1
index 49926c1..9e6f02b 100644
--- a/backup.ps1
+++ b/backup.ps1
@@ -3,9 +3,9 @@
 $dir =  Split-Path $script:MyInvocation.MyCommand.Path
 . "$dir/env.ps1"
 if ( $KUMA_ID -ne "" ){
-    $RUNNING_URL = "https://$KUMA_URL/api/push/$KUMA_ID?status=up&msg=Running&ping="
-    $FAILURE_URL = "https://$KUMA_URL/api/push/$KUMA_ID?status=down&msg=Failed&ping="
-    $SUCCESS_URL = "https://$KUMA_URL/api/push/$KUMA_ID?status=up&msg=Completed&ping="
+    $RUNNING_URL = "https://$KUMA_URL/api/push/$($KUMA_ID)?status=up&msg=Running&ping="
+    $FAILURE_URL = "https://$KUMA_URL/api/push/$($KUMA_ID)?status=down&msg=Failed&ping="
+    $SUCCESS_URL = "https://$KUMA_URL/api/push/$($KUMA_ID)?status=up&msg=Completed&ping="
 } elseif ( $HEALTHCHECK_UUID -ne "" ) {
     $RUNNING_URL = "https://hc-ping.com/$HEALTHCHECK_UUID/start"
     $FAILURE_URL = "https://hc-ping.com/$HEALTHCHECK_UUID/fail"