diff --git a/pyJammASD/main.py b/pyJammASD/main.py
index 3920040..44ab58e 100644
--- a/pyJammASD/main.py
+++ b/pyJammASD/main.py
@@ -9,9 +9,10 @@
 import sys
 import configparser
 import struct
+import json
 from hidapi import *
 from optparse import OptionParser
 from pyJammASD import *
 
 if __name__ == '__main__':
-    jammasd_main()
\ No newline at end of file
+    jammasd_main()