diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 7d38dc3ce1046aea2d6333c3fd39be53854e1064..605fe4b990d45e9c68c9f34c33d639e7cb406282 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -11993,6 +11993,12 @@ (define-public emacs-loop
        (sha256
         (base32 "1gs95xnmnn8aa4794k7h8mw1sz1nfdh9v0caqj6yvnsdnwy74n5x"))))
     (build-system emacs-build-system)
+    (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/loop.el")
     (synopsis "Imperative loop structures for Emacs")
     (description "Loop structures familiar to users of other languages.  This