diff --git a/ib-clearance.py b/ib-clearance.py
index d6c77b8..2c76efb 100755
--- a/ib-clearance.py
+++ b/ib-clearance.py
@@ -17,6 +17,7 @@
 import sqlite3
 import time
 from os import name
+from sys import exit
 
 # Windows has standard library getch, use that.
 if name == "nt":