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 3696ccbab..3ac7715e6 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
@@ -3,6 +3,7 @@ package io.legado.app.ui.book.read
 import android.annotation.SuppressLint
 import android.app.Activity
 import android.content.Intent
+import android.content.res.Configuration
 import android.net.Uri
 import android.os.Bundle
 import android.os.Handler
@@ -111,6 +112,11 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         upSystemUiVisibility()
     }
 
+    override fun onConfigurationChanged(newConfig: Configuration) {
+        super.onConfigurationChanged(newConfig)
+        ReadBook.loadContent()
+    }
+
     override fun onResume() {
         super.onResume()
         upSystemUiVisibility()