diff --git a/plugins/system/add.js b/plugins/system/add.js
index a0cc7e7..d1708f6 100644
--- a/plugins/system/add.js
+++ b/plugins/system/add.js
@@ -395,7 +395,7 @@ export class add extends plugin {
 
     let num = 0
     if (isNaN(keyWord)) {
-      num = keyWord.trim().match(/[0-9]+/g)[0]
+      num = keyWord.trim().match(/[0-9]+/g)[0] || keyWord
 
       if (!isNaN(num) && !textArr[this.group_id].has(keyWord) && !textArr[this.e.bot.uin].has(keyWord)) {
         keyWord = lodash.trimEnd(keyWord, num).trim()