diff --git a/tacotron/synthesizer.py b/tacotron/synthesizer.py
index bc609690..f128e63f 100644
--- a/tacotron/synthesizer.py
+++ b/tacotron/synthesizer.py
@@ -1,6 +1,7 @@
 import os
 import wave
 from datetime import datetime
+import platform
 
 import numpy as np
 import pyaudio