diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 90e7eade1..e81d7cad9 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -92,6 +92,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
     override val headerHeight: Int get() = page_view.curPage.headerHeight
 
     override fun onCreate(savedInstanceState: Bundle?) {
+        ReadBook.msg = null
         Help.setOrientation(this)
         super.onCreate(savedInstanceState)
     }