diff --git a/app/src/main/java/io/legado/app/data/entities/BookSource.kt b/app/src/main/java/io/legado/app/data/entities/BookSource.kt
index fc79db4c5..fd5053f02 100644
--- a/app/src/main/java/io/legado/app/data/entities/BookSource.kt
+++ b/app/src/main/java/io/legado/app/data/entities/BookSource.kt
@@ -21,14 +21,14 @@ import javax.script.SimpleBindings
 
 @Parcelize
 @Entity(
-        tableName = "book_sources",
-        indices = [(Index(value = ["bookSourceUrl"], unique = false))]
+    tableName = "book_sources",
+    indices = [(Index(value = ["bookSourceUrl"], unique = false))]
 )
 data class BookSource(
     var bookSourceName: String = "",                    // 名称
     var bookSourceGroup: String? = null,                // 分组
     @PrimaryKey
-        var bookSourceUrl: String = "",                  // 地址，包括 http/https
+    var bookSourceUrl: String = "",                  // 地址，包括 http/https
     var bookSourceType: Int = 0,                        // 类型，0 文本，1 音频
     var bookUrlPattern: String? = null,
     var customOrder: Int = 0,                 // 手动排序编号
@@ -78,8 +78,8 @@ data class BookSource(
                     AppConst.SCRIPT_ENGINE.eval(it.substring(4, it.lastIndexOf("<"))).toString()
                 else -> it
             }
-            GSON.fromJsonObject<Map<String, String>>(header1)?.let { headers ->
-                headerMap.putAll(headers)
+            GSON.fromJsonObject<Map<String, String>>(header1)?.let { map ->
+                headerMap.putAll(map)
             }
         }
         return headerMap