diff --git a/controller.py b/controller.py
index 4e505c27..ec46dbbe 100644
--- a/controller.py
+++ b/controller.py
@@ -938,6 +938,7 @@ def callbackSetEnableVrcMicMuteSync(value):
     else:
         model.stopCheckMuteSelfStatus()
         view.setStateVrcMicMuteSync("disabled")
+    model.changeMicTranscriptStatus()
 
 
 def callbackSetEnableSendMessageToVrc(value):
diff --git a/model.py b/model.py
index 943c49bf..d65d3582 100644
--- a/model.py
+++ b/model.py
@@ -179,7 +179,7 @@ class Model:
                 )
 
         # 翻訳失敗時のフェールセーフ処理
-        if translation is True:
+        if isinstance(translation, str):
             success_flag = True
         else:
             while True: