diff --git a/setup.py b/setup.py
index e7ab1c9..0fa3f1a 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,8 @@
         "serial",
         "pytlv",
         "cmd2",
-        "jsonpath-ng"
+        "jsonpath-ng",
+        "construct",
     ],
     scripts=[
         'pySim-prog.py',