diff --git a/sip/send_sms.py b/sip/send_sms.py
index e4cf922a3c8b0d1dd667cd77514878aac0f60d0c..cdee64149c90f6c94252714291a03c1782bb5b52 100755
--- a/sip/send_sms.py
+++ b/sip/send_sms.py
@@ -17,6 +17,7 @@ sys.path.append('/usr/scripts/gestion/secrets')
 from secrets import asterisk_sms_passwd
 sys.path.pop()
 import os
+import getpass
 import sys
 import argparse
 
@@ -35,7 +36,7 @@ from sip.asterisk import Manager
 if __name__ == '__main__':
     args = parser.parse_args(sys.argv[1:])
 
-    login = os.getenv("SUDO_USER") or os.getenv("USER")
+    login = getpass.getuser()
     ldap = lc_ldap.shortcuts.lc_ldap_readonly()
     adh = ldap.search(u'uid=%s' % login)[0]