diff --git a/app.js b/app.js
index a41c883..9a72fc0 100755
--- a/app.js
+++ b/app.js
@@ -51,7 +51,9 @@ const signInHandler = async (argv) => {
       roleCredentials: { accessKeyId, secretAccessKey, sessionToken },
     } = await getCredentials(accessToken, accountId, roleName, region);
 
-    if (argv.web) {
+    if (argv.web && typeof process.env.BROWSER !== 'undefined') {
+      open(await getSigninUrl(accessKeyId, secretAccessKey, sessionToken), {app: process.env.BROWSER});
+    } else if (argv.web) {
       open(await getSigninUrl(accessKeyId, secretAccessKey, sessionToken));
     } else {
       console.log(
diff --git a/lib/auth.js b/lib/auth.js
index 9edd13a..2db9e7d 100644
--- a/lib/auth.js
+++ b/lib/auth.js
@@ -34,7 +34,11 @@ const requestToken = async ({ clientId, clientSecret }, startUrl, AWSClient) =>
     AWSClient
   );
   console.error(`Attempting to open: ${chalk.bold.yellow(verificationUriComplete)}`);
-  await open(verificationUriComplete);
+  if (typeof process.env.BROWSER !== 'undefined') {
+    await open(verificationUriComplete, {app: process.env.BROWSER});
+  } else {
+    await open(verificationUriComplete);
+  }
   await keypress("enter");
   const token = await createToken(clientId, clientSecret, deviceCode, AWSClient);