diff --git a/jenkins-home/ssh_config.in b/jenkins-home/ssh_config.in
index ef3b8ad55e8940f9f5f37971afbc0eb66b4fef81..2d0e28f527e0f1a73e6d24807c1989bc8cf56e6a 100644
--- a/jenkins-home/ssh_config.in
+++ b/jenkins-home/ssh_config.in
@@ -1,6 +1,6 @@
 Host *
     HashKnownHosts no
-    ControlMaster auto
+    ControlMaster no
     ControlPath ~/.ssh/master-%r@%h:%p
 
 # update_jdn will append here host specific instructions