diff --git a/examples/speechcommand_v1/s0/local/prepare_speech_command.py b/examples/speechcommand_v1/s0/local/prepare_speech_command.py
index f7898f3..d2d198f 100644
--- a/examples/speechcommand_v1/s0/local/prepare_speech_command.py
+++ b/examples/speechcommand_v1/s0/local/prepare_speech_command.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 import os
-import sys
 import argparse
 
 CLASSES = 'unknown, yes, no, up, down, left, right, on, off, stop, go'.split(