diff --git a/app/src/main/java/io/legado/app/service/help/ReadAloud.kt b/app/src/main/java/io/legado/app/service/help/ReadAloud.kt
index b25c270c3..21ddff158 100644
--- a/app/src/main/java/io/legado/app/service/help/ReadAloud.kt
+++ b/app/src/main/java/io/legado/app/service/help/ReadAloud.kt
@@ -6,10 +6,14 @@ import io.legado.app.App
 import io.legado.app.constant.IntentAction
 import io.legado.app.constant.PreferKey
 import io.legado.app.data.entities.HttpTTS
+import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.service.BaseReadAloudService
 import io.legado.app.service.HttpReadAloudService
 import io.legado.app.service.TTSReadAloudService
 import io.legado.app.utils.getPrefLong
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlin.coroutines.CoroutineContext
 
 object ReadAloud {
     private var aloudClass: Class<*> = getReadAloudClass()
@@ -26,8 +30,15 @@ object ReadAloud {
         }
     }
 
-    fun upReadAloudClass() {
-        aloudClass = getReadAloudClass()
+    fun upReadAloudClass(
+        scope: CoroutineScope = Coroutine.DEFAULT,
+        context: CoroutineContext = Dispatchers.IO): Coroutine<*> {
+        return Coroutine.async(scope, context) {
+            aloudClass = getReadAloudClass()
+            while (BaseReadAloudService.isRun) {
+                continue
+            }
+        }
     }
 
     fun play(
@@ -105,4 +116,4 @@ object ReadAloud {
         }
     }
 
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/ReadAloudConfigDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/ReadAloudConfigDialog.kt
index 3ae466454..6f2689147 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/ReadAloudConfigDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/ReadAloudConfigDialog.kt
@@ -19,6 +19,7 @@ import io.legado.app.lib.theme.ATH
 import io.legado.app.lib.theme.backgroundColor
 import io.legado.app.service.BaseReadAloudService
 import io.legado.app.service.help.ReadAloud
+import io.legado.app.service.help.ReadBook
 import io.legado.app.utils.getPrefLong
 import io.legado.app.utils.postEvent
 
@@ -112,7 +113,11 @@ class ReadAloudConfigDialog : DialogFragment() {
                 }
                 PreferKey.speakEngine -> {
                     upPreferenceSummary(findPreference(key), speakEngineSummary)
-                    ReadAloud.upReadAloudClass()
+                    ReadAloud.upReadAloudClass().onSuccess {
+                        if (!BaseReadAloudService.isRun) {
+                            ReadBook.readAloud()
+                        }
+                    }
                 }
             }
         }
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 6ee1d5bda..cce3a5a82 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
@@ -23,7 +23,9 @@ import io.legado.app.lib.dialogs.cancelButton
 import io.legado.app.lib.dialogs.customView
 import io.legado.app.lib.dialogs.okButton
 import io.legado.app.lib.theme.primaryColor
+import io.legado.app.service.BaseReadAloudService
 import io.legado.app.service.help.ReadAloud
+import io.legado.app.service.help.ReadBook
 import io.legado.app.utils.*
 import kotlinx.android.synthetic.main.dialog_http_tts_edit.view.*
 import kotlinx.android.synthetic.main.dialog_recycler_view.*
@@ -123,7 +125,11 @@ class SpeakEngineDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
                     httpTTS.name = tv_name.text.toString()
                     httpTTS.url = tv_url.text.toString()
                     App.db.httpTTSDao().insert(httpTTS)
-                    ReadAloud.upReadAloudClass()
+                    ReadAloud.upReadAloudClass().onSuccess {
+                        if (!BaseReadAloudService.isRun) {
+                            ReadBook.readAloud()
+                        }
+                    }
                 }
             }
         }.show().applyTint()