diff --git a/nodepool/nodeutils.py b/nodepool/nodeutils.py
index 97b92f671..5741c4d85 100644
--- a/nodepool/nodeutils.py
+++ b/nodepool/nodeutils.py
@@ -56,7 +56,7 @@ def ssh_connect(ip, username, connect_kwargs={}, timeout=60):
             # after sshd is up (Fedora for example)
             log.info('Password auth exception. Try number %i...' % count)
         except socket.error as e:
-            if e[0] not in [errno.ECONNREFUSED, errno.EHOSTUNREACH]:
+            if e[0] not in [errno.ECONNREFUSED, errno.EHOSTUNREACH, None]:
                 log.exception('Exception while testing ssh access:')
 
     out = client.ssh("test ssh access", "echo access okay", output=True)