diff --git a/pyModeS/streamer/decode.py b/pyModeS/streamer/decode.py
index 0816d06..e5ae584 100644
--- a/pyModeS/streamer/decode.py
+++ b/pyModeS/streamer/decode.py
@@ -1,5 +1,6 @@
 import os
 import time
+import traceback
 import datetime
 import csv
 import pyModeS as pms