diff --git a/extra/shutils/regressiontest.py b/extra/shutils/regressiontest.py
index 70ab59d18..bb9fdc2a7 100644
--- a/extra/shutils/regressiontest.py
+++ b/extra/shutils/regressiontest.py
@@ -11,6 +11,7 @@ import smtplib
 import subprocess
 import sys
 import time
+import traceback
 
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText