diff --git a/test/common/index.js b/test/common/index.js
index a659a91697e9c9..bd4a0c339a8051 100644
--- a/test/common/index.js
+++ b/test/common/index.js
@@ -340,7 +340,7 @@ 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__)