diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index 615f9219448..87c1bc0b460 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -189,7 +189,7 @@ The string is used in `tramp-methods'.")
                 (tramp-login-args           (("-l" "%u") ("-p" "%p") ("%c")
 				             ("-e" "none") ("%h")))
                 (tramp-async-args           (("-q")))
-                (tramp-direct-async         t)
+		(tramp-direct-async         ("-t" "-t"))
                 (tramp-remote-shell         ,tramp-default-remote-shell)
                 (tramp-remote-shell-login   ("-l"))
                 (tramp-remote-shell-args    ("-c"))
@@ -253,7 +253,7 @@ The string is used in `tramp-methods'.")
                 (tramp-login-args           (("-l" "%u") ("-p" "%p") ("%c")
 				             ("-e" "none") ("%h")))
                 (tramp-async-args           (("-q")))
-                (tramp-direct-async         t)
+		(tramp-direct-async         ("-t" "-t"))
                 (tramp-remote-shell         ,tramp-default-remote-shell)
                 (tramp-remote-shell-login   ("-l"))
                 (tramp-remote-shell-args    ("-c"))))