diff --git a/modules/nodeinfo.nix b/modules/nodeinfo.nix
index 8bba8e0..ec683d5 100644
--- a/modules/nodeinfo.nix
+++ b/modules/nodeinfo.nix
@@ -42,6 +42,7 @@ let
 
     import json
     import subprocess
+    import sys
     from collections import OrderedDict
 
     def success(*args):