diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/ReadStyleDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/ReadStyleDialog.kt
index f29c4ddba..d0ca45b62 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/ReadStyleDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/ReadStyleDialog.kt
@@ -104,10 +104,8 @@ class ReadStyleDialog : DialogFragment(), FontSelectDialog.CallBack {
             showTitleConfig()
         }
         tv_text_bold.onClick {
-            ReadBookConfig.apply {
-                textBold = !textBold
-                tv_text_bold.isSelected = textBold
-            }
+            ReadBookConfig.textBold = !ReadBookConfig.textBold
+            tv_text_bold.isSelected = ReadBookConfig.textBold
             postEvent(EventBus.UP_CONFIG, true)
         }
         tv_text_font.onClick {