diff --git a/guix/ui.scm b/guix/ui.scm
index 312c2a01a18..581fb941f58 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -1191,6 +1191,9 @@ and signal handling has already been set up."
      (format (current-error-port)
              (_ "guix: unrecognized option '~a'~%") o)
      (show-guix-usage))
+    (("help" command)
+     (apply run-guix-command (string->symbol command)
+            '("--help")))
     (("help" args ...)
      (show-guix-help))
     ((command args ...)