diff --git a/src/isomorphic/classic/types/__tests__/ReactPropTypesProduction-test.js b/src/isomorphic/classic/types/__tests__/ReactPropTypesProduction-test.js
index 78b131ff7d..0e0f0893ab 100644
--- a/src/isomorphic/classic/types/__tests__/ReactPropTypesProduction-test.js
+++ b/src/isomorphic/classic/types/__tests__/ReactPropTypesProduction-test.js
@@ -23,6 +23,7 @@ describe('ReactPropTypesProduction', function() {
     __DEV__ = false;
     oldProcess = process;
     global.process = {
+      cwd: process.cwd,
       env: Object.assign({}, process.env, {NODE_ENV: 'production'}),
     };