diff --git a/teuthology/nuke.py b/teuthology/nuke.py
index 626a550afcc..10f1f7b0dac 100644
--- a/teuthology/nuke.py
+++ b/teuthology/nuke.py
@@ -1,4 +1,5 @@
 import argparse
+import os
 import yaml
 import textwrap
 from argparse import RawTextHelpFormatter