diff --git a/cli/cmd/compose/exec.go b/cli/cmd/compose/exec.go
index b37a6e222..c9b47ee2a 100644
--- a/cli/cmd/compose/exec.go
+++ b/cli/cmd/compose/exec.go
@@ -68,7 +68,7 @@ func execCommand(p *projectOptions, backend compose.Service) *cobra.Command {
 	runCmd.Flags().IntVar(&opts.index, "index", 1, "index of the container if there are multiple instances of a service [default: 1].")
 	runCmd.Flags().BoolVarP(&opts.privileged, "privileged", "", false, "Give extended privileges to the process.")
 	runCmd.Flags().StringVarP(&opts.user, "user", "u", "", "Run the command as this user.")
-	runCmd.Flags().BoolVarP(&opts.noTty, "", "T", notAtTTY(), "Disable pseudo-TTY allocation. By default `docker compose exec` allocates a TTY.")
+	runCmd.Flags().BoolVarP(&opts.noTty, "no-TTY", "T", notAtTTY(), "Disable pseudo-TTY allocation. By default `docker compose exec` allocates a TTY.")
 	runCmd.Flags().StringVarP(&opts.workingDir, "workdir", "w", "", "Path to workdir directory for this command.")
 
 	runCmd.Flags().SetInterspersed(false)