diff --git a/lib/plugins/aws/utils/credentials.js b/lib/plugins/aws/utils/credentials.js
index feb4e9f21..5cf1953ea 100644
--- a/lib/plugins/aws/utils/credentials.js
+++ b/lib/plugins/aws/utils/credentials.js
@@ -9,6 +9,7 @@ const homedir = os.homedir();
 const awsConfigDirPath = join(homedir, '.aws');
 const credentialsFilePath = homedir ? join(awsConfigDirPath, 'credentials') : null;
 
+const isWindows = process.platform === 'win32';
 const profileNameRe = /^\[([^\]]+)]\s*$/;
 const settingRe = /^([a-zA-Z0-9_]+)\s*=\s*([^\s]+)\s*$/;
 const settingMap = new Map([
@@ -47,11 +48,11 @@ const writeCredentialsContent = content =>
     writeFile(
       credentialsFilePath,
       content,
-      { mode: constants.S_IRUSR | constants.S_IWUSR },
+      !isWindows ? { mode: constants.S_IRUSR | constants.S_IWUSR } : null,
       writeFileError => {
         if (writeFileError) {
           if (writeFileError.code === 'ENOENT') {
-            mkdir(awsConfigDirPath, { mode: constants.S_IRWXU }, mkdirError => {
+            mkdir(awsConfigDirPath, !isWindows ? { mode: constants.S_IRWXU } : null, mkdirError => {
               if (mkdirError) reject(mkdirError);
               else resolve(writeCredentialsContent(content));
             });