diff --git a/utils/bisect.js b/utils/bisect.js
index c20ecee9ad4..b8bb52fd776 100755
--- a/utils/bisect.js
+++ b/utils/bisect.js
@@ -116,6 +116,7 @@ function runScript(scriptPath, revisionInfo) {
   const child = fork(scriptPath, [], {
     stdio: ['inherit', 'inherit', 'inherit', 'ipc'],
     env: {
+      ...process.env,
       PUPPETEER_EXECUTABLE_PATH: revisionInfo.executablePath,
     },
   });