diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/MoreConfigDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/MoreConfigDialog.kt
index 51470b2ee..4a869a1ed 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/MoreConfigDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/MoreConfigDialog.kt
@@ -74,11 +74,15 @@ class MoreConfigDialog : DialogFragment() {
 
         override fun onResume() {
             super.onResume()
-            preferenceManager.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
+            preferenceManager
+                .sharedPreferences
+                .registerOnSharedPreferenceChangeListener(this)
         }
 
         override fun onPause() {
-            preferenceManager.sharedPreferences.unregisterOnSharedPreferenceChangeListener(this)
+            preferenceManager
+                .sharedPreferences
+                .unregisterOnSharedPreferenceChangeListener(this)
             super.onPause()
         }