diff --git a/test/common/index.js b/test/common/index.js
index c161f2a9a9..84c89f6166 100644
--- a/test/common/index.js
+++ b/test/common/index.js
@@ -338,7 +338,7 @@ exports.spawnSyncPwd = function(options) {
 };
 
 exports.platformTimeout = function(ms) {
-  if (process.config.target_defaults.default_configuration === 'Debug')
+  if (process.features.debug)
     ms = 2 * ms;
 
   if (global.__coverage__)