diff --git a/manifest.json b/manifest.json
index 6145ea9..14ba9e5 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,5 +1,5 @@
 {
-  "version": "3.2.0",
+  "version": "3.2.1",
   "manifest_version": 2,
   "default_locale": "en",
   "name": "__MSG_appName__",
diff --git a/src/gas-hub.js b/src/gas-hub.js
index b530251..7e820fb 100644
--- a/src/gas-hub.js
+++ b/src/gas-hub.js
@@ -205,7 +205,8 @@ function initPageEvent() {
 
   $(document).on('click', '#config-button', () => {
     $('#filetype').val(context.filetype);
-    $('#ignore-pattern').val(context.bindPattern[context.id].join(';'));
+    const pattern = context.bindPattern[context.id] || [];
+    $('#ignore-pattern').val(pattern.join(';'));
     changeModalState('config', true);
   });