diff --git a/app/src/main/java/io/legado/app/api/controller/BookController.kt b/app/src/main/java/io/legado/app/api/controller/BookController.kt
index 36238e5ff..863308dc2 100644
--- a/app/src/main/java/io/legado/app/api/controller/BookController.kt
+++ b/app/src/main/java/io/legado/app/api/controller/BookController.kt
@@ -305,7 +305,8 @@ object BookController {
      */
     fun getWebReadConfig(): ReturnData {
         val returnData = ReturnData()
-        val data = CacheManager.get("webReadConfig") ?: "{}"
+        val data = CacheManager.get("webReadConfig")
+            ?: return returnData.setErrorMsg("没有配置")
         return returnData.setData(data)
     }