diff --git a/tes/sshwrapper/__init__.py b/tes/sshwrapper/__init__.py
index 2ea279314eee030eef96e04276c25013a0e92e4d..80823407e299fb9285f787f1b5fc2398fe21db47 100644
--- a/tes/sshwrapper/__init__.py
+++ b/tes/sshwrapper/__init__.py
@@ -132,6 +132,8 @@ class Ssh:
             if sess.socket is None:
                 raise SshAgentException("No ssh-agent yet")
             env['SSH_AUTH_SOCK'] = sess.socket
+            logger.debug("creating master socket")
+            logger.debug(" ".join(sshcmd))
             ctrl_p = subprocess.Popen(sshcmd,
                                       stdout=subprocess.PIPE, stderr=subprocess.PIPE,
                                       stdin=None,