diff --git a/apps/setting/models_provider/impl/aliyun_bai_lian_model_provider/model/tts.py b/apps/setting/models_provider/impl/aliyun_bai_lian_model_provider/model/tts.py
index bcba7d462b8..60c1a77fad8 100644
--- a/apps/setting/models_provider/impl/aliyun_bai_lian_model_provider/model/tts.py
+++ b/apps/setting/models_provider/impl/aliyun_bai_lian_model_provider/model/tts.py
@@ -46,6 +46,8 @@ def text_to_speech(self, text):
             from dashscope.audio.tts_v2 import SpeechSynthesizer
             synthesizer = SpeechSynthesizer(model=self.model, **self.params)
             audio = synthesizer.call(text)
+        if audio is None:
+            raise Exception('Failed to generate audio')
         if type(audio) == str:
             print(audio)
             raise Exception(audio)