diff --git a/groundstation/program_fm.py b/groundstation/program_fm.py
index b839496e..232a59ca 100644
--- a/groundstation/program_fm.py
+++ b/groundstation/program_fm.py
@@ -1,5 +1,6 @@
 import serial	
 from os import system
+import sys
 
 if __name__ == "__main__":
 	txf = 434.9