diff --git a/Jenkinsfile b/Jenkinsfile
index 3c3cb8a..a137b24 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -103,7 +103,7 @@ pipeline {
                         ssh -i ${SSH_KEY_PATH} -o StrictHostKeyChecking=no ${HOST_USER}@${HOST_IP} "
                             if [ -d '${HOST_TARGET}' ]; then
                                 TIMESTAMP=$(date +%Y%m%d%H%M%S)
-                                mv '${HOST_TARGET}' '${HOST_BACKUP}/backup_$TIMESTAMP'
+                                mv '${HOST_TARGET}' '${HOST_BACKUP}/backup_{$TIMESTAMP}'
                             fi
                         "