1 files changed, 1 insertions, 1 deletions

diff --git a/test/lisp/auth-source-tests.el b/test/lisp/auth-source-tests.el
index 99d830c6b06..f35c4009535 100644
--- a/test/lisp/auth-source-tests.el
+++ b/test/lisp/auth-source-tests.el
@@ -270,7 +270,7 @@
          (netrc-file (make-temp-file
                       "auth-source-test"
                       nil nil
-                      (string-join entries "\n")))
+                      (mapconcat 'identity entries "\n")))
          (auth-sources (list netrc-file))
          (auth-source-do-cache nil)
          found found-as-string)