diff --git a/clusterman/utils.py b/clusterman/utils.py
index b68e0a6..0901c01 100755
--- a/clusterman/utils.py
+++ b/clusterman/utils.py
@@ -1,4 +1,4 @@
-import subprocess, os, json, re
+import subprocess, os, json, re, sys
 from clusterman.config import CONF
 
 def ssh_exec(host,command,use_key=True):