diff --git a/test/fixtures/issue-497.js b/test/fixtures/issue-497.js
index cdf053f00..11ee27dbb 100755
--- a/test/fixtures/issue-497.js
+++ b/test/fixtures/issue-497.js
@@ -5,6 +5,7 @@
 // pretend we are a TTY
 process.stdout.isTTY = true;
 process.stderr.isTTY = true;
+process.stderr.hasColors = () => true;
 
 const yargs = require('../../');
 const y = yargs