diff --git a/speech/cloud-client/transcribe_enhanced_model.py b/speech/cloud-client/transcribe_enhanced_model.py
index 04ae3c18474..514d54812d0 100644
--- a/speech/cloud-client/transcribe_enhanced_model.py
+++ b/speech/cloud-client/transcribe_enhanced_model.py
@@ -28,7 +28,10 @@
 def transcribe_file_with_enhanced_model(path):
     """Transcribe the given audio file using an enhanced model."""
     # [START speech_transcribe_enhanced_model]
+    import io 
+    
     from google.cloud import speech
+    
     client = speech.SpeechClient()
 
     # path = 'resources/commercial_mono.wav'