diff --git a/src/applications/drydock/interface/command/DrydockSSHCommandInterface.php b/src/applications/drydock/interface/command/DrydockSSHCommandInterface.php
index 16bb97948b..c62fdf6fd2 100644
--- a/src/applications/drydock/interface/command/DrydockSSHCommandInterface.php
+++ b/src/applications/drydock/interface/command/DrydockSSHCommandInterface.php
@@ -86,6 +86,7 @@ EOF;
     return new ExecFuture(
       'ssh '.
       '-o StrictHostKeyChecking=no '.
+      '-o UserKnownHostsFile=/dev/null '.
       '-o BatchMode=yes '.
       '%C -p %s -i %P %P@%s -- %s',
       $command_timeout,