diff --git a/docs/reference/commandline/service_create.md b/docs/reference/commandline/service_create.md
index f5f203d5cc..17bb27d71b 100644
--- a/docs/reference/commandline/service_create.md
+++ b/docs/reference/commandline/service_create.md
@@ -52,6 +52,7 @@ Options:
       --restart-max-attempts value       Maximum number of restarts before giving up (default none)
       --restart-window value             Window used to evaluate the restart policy (default none)
       --stop-grace-period value          Time to wait before force killing a container (default none)
+  -t, --tty                              Allocate a pseudo-TTY
       --update-delay duration            Delay between updates
       --update-failure-action string     Action on update failure (pause|continue) (default "pause")
       --update-max-failure-ratio value   Failure rate to tolerate during an update
diff --git a/docs/reference/commandline/service_update.md b/docs/reference/commandline/service_update.md
index f938a9efc3..143e435157 100644
--- a/docs/reference/commandline/service_update.md
+++ b/docs/reference/commandline/service_update.md
@@ -58,6 +58,7 @@ Options:
       --restart-window value             Window used to evaluate the restart policy (default none)
       --rollback                         Rollback to previous specification
       --stop-grace-period value          Time to wait before force killing a container (default none)
+  -t, --tty                              Allocate a pseudo-TTY
       --update-delay duration            Delay between updates
       --update-failure-action string     Action on update failure (pause|continue) (default "pause")
       --update-max-failure-ratio value   Failure rate to tolerate during an update