diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/SpeakEngineDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/SpeakEngineDialog.kt
index 873276c0c..feb9e4fc5 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/SpeakEngineDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/SpeakEngineDialog.kt
@@ -71,7 +71,7 @@ class SpeakEngineDialog(val callBack: CallBack) : BaseDialogFragment(R.layout.di
 
     override fun onStart() {
         super.onStart()
-        setLayout(0.92f, 0.9f)
+        setLayout(ViewGroup.LayoutParams.MATCH_PARENT, 0.9f)
     }
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {