diff --git a/observium_sms_remote.py b/observium_sms_remote.py
index d8d13ad..fad4461 100755
--- a/observium_sms_remote.py
+++ b/observium_sms_remote.py
@@ -5,6 +5,7 @@ import time
 import os
 import sys
 import shlex
+import subprocess
 from datetime import datetime
 from observium_func import assemble_sms