diff --git a/command/service/create.go b/command/service/create.go
index d2925b42db..28790ec8e6 100644
--- a/command/service/create.go
+++ b/command/service/create.go
@@ -39,6 +39,7 @@ func newCreateCommand(dockerCli *command.DockerCli) *cobra.Command {
 	flags.StringSliceVar(&opts.constraints, flagConstraint, []string{}, "Placement constraints")
 	flags.StringSliceVar(&opts.networks, flagNetwork, []string{}, "Network attachments")
 	flags.VarP(&opts.endpoint.ports, flagPublish, "p", "Publish a port as a node port")
+	flags.StringSliceVar(&opts.groups, flagGroup, []string{}, "Set one or more supplementary user groups for the container")
 
 	flags.SetInterspersed(false)
 	return cmd
diff --git a/command/service/opts.go b/command/service/opts.go
index 0c91360c6e..43b7b671cb 100644
--- a/command/service/opts.go
+++ b/command/service/opts.go
@@ -583,7 +583,6 @@ func addServiceFlags(cmd *cobra.Command, opts *serviceOptions) {
 
 	flags.StringVarP(&opts.workdir, flagWorkdir, "w", "", "Working directory inside the container")
 	flags.StringVarP(&opts.user, flagUser, "u", "", "Username or UID (format: <name|uid>[:<group|gid>])")
-	flags.StringSliceVar(&opts.groups, flagGroupAdd, []string{}, "Add additional user groups to the container")
 
 	flags.Var(&opts.resources.limitCPU, flagLimitCPU, "Limit CPUs")
 	flags.Var(&opts.resources.limitMemBytes, flagLimitMemory, "Limit Memory")
@@ -630,6 +629,7 @@ const (
 	flagEnvFile               = "env-file"
 	flagEnvRemove             = "env-rm"
 	flagEnvAdd                = "env-add"
+	flagGroup                 = "group"
 	flagGroupAdd              = "group-add"
 	flagGroupRemove           = "group-rm"
 	flagLabel                 = "label"
diff --git a/command/service/update.go b/command/service/update.go
index 356c27a5c6..b76a20e97c 100644
--- a/command/service/update.go
+++ b/command/service/update.go
@@ -42,7 +42,7 @@ func newUpdateCommand(dockerCli *command.DockerCli) *cobra.Command {
 	addServiceFlags(cmd, opts)
 
 	flags.Var(newListOptsVar(), flagEnvRemove, "Remove an environment variable")
-	flags.Var(newListOptsVar(), flagGroupRemove, "Remove previously added user groups from the container")
+	flags.Var(newListOptsVar(), flagGroupRemove, "Remove previously added supplementary user groups from the container")
 	flags.Var(newListOptsVar(), flagLabelRemove, "Remove a label by its key")
 	flags.Var(newListOptsVar(), flagContainerLabelRemove, "Remove a container label by its key")
 	flags.Var(newListOptsVar(), flagMountRemove, "Remove a mount by its target path")
@@ -54,6 +54,7 @@ func newUpdateCommand(dockerCli *command.DockerCli) *cobra.Command {
 	flags.Var(&opts.mounts, flagMountAdd, "Add or update a mount on a service")
 	flags.StringSliceVar(&opts.constraints, flagConstraintAdd, []string{}, "Add or update placement constraints")
 	flags.Var(&opts.endpoint.ports, flagPublishAdd, "Add or update a published port")
+	flags.StringSliceVar(&opts.groups, flagGroupAdd, []string{}, "Add additional supplementary user groups to the container")
 	return cmd
 }