diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16990d7..f17c2f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@
 🛠 refactor
 -->
 
+## v3.0.1
+
+`2022.08.01`
+
+- 🐞 fix: check will undefined.
+
 ## v3.0.0
 
 `2022.02.15`
diff --git a/dist/index.js b/dist/index.js
index 921a4ac..0779dd4 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -14753,7 +14753,7 @@ function doCheckIssue() {
             const bodyArr = bodyIncludes.split('/');
             const keyword1 = (0, actions_util_1.dealStringToArr)(bodyArr[0]);
             const keyword2 = (0, actions_util_1.dealStringToArr)(bodyArr[1]);
-            checkResult = keyword2.length
+            checkResult = keyword2 && keyword2.length
                 ? (0, util_1.matchKeyword)(issue.body, keyword1) && (0, util_1.matchKeyword)(issue.body, keyword2)
                 : (0, util_1.matchKeyword)(issue.body, keyword1);
         }
diff --git a/src/helper/advanced.ts b/src/helper/advanced.ts
index 5beed29..79cc503 100644
--- a/src/helper/advanced.ts
+++ b/src/helper/advanced.ts
@@ -169,7 +169,7 @@ export async function doCheckIssue() {
     const bodyArr = bodyIncludes.split('/');
     const keyword1 = dealStringToArr(bodyArr[0]);
     const keyword2 = dealStringToArr(bodyArr[1]);
-    checkResult = keyword2.length
+    checkResult = keyword2 && keyword2.length
       ? matchKeyword(issue.body, keyword1) && matchKeyword(issue.body, keyword2)
       : matchKeyword(issue.body, keyword1);
   }