diff --git a/jest/preprocessor.js b/jest/preprocessor.js
index 17838def4c2..0389d33f8be 100644
--- a/jest/preprocessor.js
+++ b/jest/preprocessor.js
@@ -23,7 +23,7 @@ const babelRegisterOnly = require('metro-babel-register');
 const createCacheKeyFunction = require('fbjs-scripts/jest/createCacheKeyFunction');
 const generate = require('@babel/generator').default;
 
-const nodeFiles = RegExp(
+const nodeFiles = new RegExp(
   [
     '/local-cli/',
     '/metro(?:-[^/]*)?/', // metro, metro-core, metro-source-map, metro-etc