diff --git a/homeassistant/components/device_tracker/aruba.py b/homeassistant/components/device_tracker/aruba.py
index f901d798c26..fe8acb95ccd 100644
--- a/homeassistant/components/device_tracker/aruba.py
+++ b/homeassistant/components/device_tracker/aruba.py
@@ -98,8 +98,9 @@ class ArubaDeviceScanner(object):
         import pexpect
         connect = "ssh {}@{}"
         ssh = pexpect.spawn(connect.format(self.username, self.host))
-        query = ssh.expect(['password:', pexpect.TIMEOUT, pexpect.EOF, 'continue connecting (yes/no)?',
-                            'Host key verification failed.', 'Connection refused', 'Connection timed out'], timeout=120)
+        query = ssh.expect(['password:', pexpect.TIMEOUT, pexpect.EOF,
+                            'continue connecting (yes/no)?', 'Host key verification failed.',
+                            'Connection refused', 'Connection timed out'], timeout=120)
         if query == 1:
             _LOGGER.error("Timeout")
             return