diff --git a/gate_guard/__init__.py b/gate_guard/__init__.py
index caf3758..532cafe 100644
--- a/gate_guard/__init__.py
+++ b/gate_guard/__init__.py
@@ -5,6 +5,7 @@ Created on Dec 19, 2016
 '''
 import time
 import gate
+import sys
 
 def main():
     gate_state = gate.Gate()