diff --git a/tnc/data_handler.py b/tnc/data_handler.py
index fa11d23a..507b8954 100644
--- a/tnc/data_handler.py
+++ b/tnc/data_handler.py
@@ -21,7 +21,7 @@ import queue
 import sock
 import uuid
 import base64
-
+import numpy as np
 
 TESTMODE = False