diff --git a/test/lisp/shadowfile-tests.el b/test/lisp/shadowfile-tests.el
index d09c15e9919..7caddc53d75 100644
--- a/test/lisp/shadowfile-tests.el
+++ b/test/lisp/shadowfile-tests.el
@@ -64,7 +64,7 @@
   "Temporary directory for Tramp tests.")
 
 (setq password-cache-expiry nil
-      shadow-debug t
+      shadow-debug nil
       tramp-verbose 0
       tramp-message-show-message nil
       ;; On macOS, `temporary-file-directory' is a symlinked directory.