diff --git a/guix/scripts/import/hackage.scm b/guix/scripts/import/hackage.scm
index e5e9b0ed6476a2a63ec963545e396f59a2f418cd..1e3355648164b09b519ee2b17819ea270f740944 100644
--- a/guix/scripts/import/hackage.scm
+++ b/guix/scripts/import/hackage.scm
@@ -125,8 +125,8 @@ (define (run-importer package-name opts error-fn)
           (()
            (run-importer "stdin" opts
                          (lambda ()
-                           (leave (_ "failed to import cabal file from '~a'~%"))
-                           package-name)))
+                           (leave (_ "failed to import cabal file \
+from standard input~%")))))
           ((many ...)
            (leave (_ "too many arguments~%"))))
         (match args