diff --git a/config.js b/config.js
index 181782b5f..37c71ee01 100644
--- a/config.js
+++ b/config.js
@@ -18,7 +18,7 @@ module.exports = {
     'gnupg',
     // Install GNU `sed`, overwriting the built-in `sed`
     // so we can do "sed -i 's/foo/bar/' file" instead of "sed -i '' 's/foo/bar/' file"
-    'gnu-sed --default-names',
+    'gnu-sed --with-default-names',
     // better, more recent grep
     'homebrew/dupes/grep',
     // https://github.com/jkbrzt/httpie