diff --git a/src/config/atomic-write.ts b/src/config/atomic-write.ts
index 0ec0831c4c..69bc112146 100644
--- a/src/config/atomic-write.ts
+++ b/src/config/atomic-write.ts
@@ -1,7 +1,6 @@
 import {
   chmodSync,
   closeSync,
-  constants,
   fchmodSync,
   fstatSync,
   lstatSync,
@@ -121,7 +120,7 @@ function writePrivateTempFile(
   timeoutMemoKey: string,
   onCreated: () => void,
 ): void {
-  const descriptor = openSync(path, constants.O_WRONLY | constants.O_CREAT | constants.O_EXCL, 0o600);
+  const descriptor = openSync(path, "wx", 0o600);
   onCreated();
   try {
     if (process.platform === "win32") {
@@ -142,7 +141,7 @@ async function writePrivateTempFileAsync(
   timeoutMemoKey: string,
   onCreated: () => void,
 ): Promise<void> {
-  const descriptor = openSync(path, constants.O_WRONLY | constants.O_CREAT | constants.O_EXCL, 0o600);
+  const descriptor = openSync(path, "wx", 0o600);
   onCreated();
   try {
     if (process.platform === "win32") {