diff --git a/app/src/main/assets/updateLog.md b/app/src/main/assets/updateLog.md
index ec5355f22..70e2b98ae 100644
--- a/app/src/main/assets/updateLog.md
+++ b/app/src/main/assets/updateLog.md
@@ -3,6 +3,10 @@
 * 关注合作公众号 **[小说拾遗]()** 获取好看的小说。
 * 旧版数据导入教程：先在旧版阅读(2.x)中进行备份，然后在新版阅读(3.x)【我的】->【备份与恢复】，选择【导入旧版本数据】。
 
+**2020/10/19**
+* 优化分组管理
+* 修复预下载没有保存的bug
+
 **2020/10/18**
 * 优化分组管理,默认分组可以重命名了
 * 修复书架空白的bug,是constraintlayout库新版本的bug
diff --git a/app/src/main/java/io/legado/app/service/help/CacheBook.kt b/app/src/main/java/io/legado/app/service/help/CacheBook.kt
index 18b68b332..3e96bd616 100644
--- a/app/src/main/java/io/legado/app/service/help/CacheBook.kt
+++ b/app/src/main/java/io/legado/app/service/help/CacheBook.kt
@@ -77,23 +77,16 @@ object CacheBook {
         downloadMap[book.bookUrl]?.add(chapter.index)
         webBook.getContent(book, chapter)
             .onSuccess(IO) { content ->
+                if (content.isNotBlank()) {
+                    BookHelp.saveContent(book, chapter, content)
+                }
                 if (ReadBook.book?.bookUrl == book.bookUrl) {
-                    if (content.isEmpty()) {
-                        ReadBook.contentLoadFinish(
-                            book,
-                            chapter,
-                            App.INSTANCE.getString(R.string.content_empty),
-                            resetPageOffset = resetPageOffset
-                        )
-                    } else {
-                        BookHelp.saveContent(book, chapter, content)
-                        ReadBook.contentLoadFinish(
-                            book,
-                            chapter,
-                            content,
-                            resetPageOffset = resetPageOffset
-                        )
-                    }
+                    ReadBook.contentLoadFinish(
+                        book,
+                        chapter,
+                        content.ifBlank { App.INSTANCE.getString(R.string.content_empty) },
+                        resetPageOffset = resetPageOffset
+                    )
                 }
             }.onError {
                 if (ReadBook.book?.bookUrl == book.bookUrl) {