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-rw-r--r--lisp/emacs-lisp/ert.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/ert.el b/lisp/emacs-lisp/ert.el
index be9f013ebcf..5d001307125 100644
--- a/lisp/emacs-lisp/ert.el
+++ b/lisp/emacs-lisp/ert.el
@@ -151,7 +151,7 @@ mode.")
(when (and noninteractive (get symbol 'ert--test))
;; Make sure duplicated tests are discovered since the older test would
;; be ignored silently otherwise.
- (error "Test `%s' redefined" symbol))
+ (error "Test `%s' redefined (or loaded twice)" symbol))
(define-symbol-prop symbol 'ert--test definition)
definition)