diff --git a/src/js/content/save.js b/src/js/content/save.js
index 7e1eb272..a862ce9d 100644
--- a/src/js/content/save.js
+++ b/src/js/content/save.js
@@ -84,6 +84,15 @@
 
         const filename = T.joinPath(storageInfo.infoFileFolder, storageInfo.infoFileName);
         _tasks.unshift(Task.createInfoTask(filename, info))
+      } else {
+        const mainFileTask = _tasks.find(it => it.taskType === 'mainFileTask')
+        if (mainFileTask) {
+          // We assume infoFileFolder is same as mainFileFolder.
+          const infoFileFolder = storageInfo.mainFileFolder;
+          info.mainPath = T.calcPath(infoFileFolder, mainFileTask.filename);
+        } else {
+          throw Error("Can not find mainFileTask");
+        }
       }
 
       const clipping = {