diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index ff2276500c..450bb6a33c 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -12790,6 +12790,12 @@ downloading manager for Emacs.")
        ("emacs-s" ,emacs-s)
        ("emacs-f" ,emacs-f)
        ("emacs-shut-up" ,emacs-shut-up)))
+    (native-inputs
+     `(("emacs-ert-runner" ,emacs-ert-runner)
+       ("emacs-undercover" ,emacs-undercover)))
+    (arguments
+     `(#:tests? #t
+       #:test-command '("ert-runner")))
     (home-page "https://github.com/Wilfred/helpful")
     (synopsis "More contextual information in Emacs help")
     (description "@code{helpful} is an alternative to the built-in Emacs help